AI dataset: finding the NACE code of an activity

44 dialogues with an extract of the NACE Rev. 2.1 classification in context: the model gives the code, asks for a detail or declines.

Preview

First 20 of 44 rows.

Identifier

contextetech--assistant-nace-code

File

assistant-nace-code.jsonl

Format

JSON Lines (application/jsonl)

Size

43,558 bytes (42.5 KB)

Encoding

UTF-8

Estimated tokens

≈ 11,903

Commercial use

Allowed

Personal data

None

Published on

October 13, 2026 at 6:15 AM

Updated on

October 16, 2026 at 11:20 PM

Storage

in database

Estimated cost

Input per pass

≈ 10,068

Output (expected answers)

≈ 1,835

Input + expected answers. Providers' public standard prices (Mistral AI, DeepSeek, OpenAI, Anthropic) converted from USD to euros at the ECB rate, checked on October 13, 2026. Batch: Batch API (OpenAI, Anthropic, Mistral) or off-peak hours (DeepSeek). Estimate: 1 token ≈ 3.6 characters.

Fine-tuning (LoRA on a rented GPU)

Tokens per training epoch

≈ 11,903

For 3 epochs

≈ 35,709

A small dataset trains in a few minutes: 1 hour billed at minimum. APIs publish no usable training price (OpenAI is closing fine-tuning to new customers, Mistral quotes on request): the estimate uses GPU rental, prices excluding VAT as of October 13, 2026.

assistant-nace-code.jsonl

{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 46.12 – Activities of agents involved in the wholesale of fuels, ores, metals and industrial chemicals\n- 95.31 – Repair and maintenance of motor vehicles\n- 95.32 – Repair and maintenance of motorcycles\n- 95.22 – Repair and maintenance of household appliances and home and garden equipment\n- 17.23 – Manufacture of paper stationery\n- 95.10 – Repair and maintenance of computers and communication equipment\n\nActivity: “I repair vehicles.”"}, {"role": "assistant", "content": "Two codes are possible: 95.31 (motor vehicles such as cars) or 95.32 (motorcycles). Which vehicles do you mainly repair?\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 56.30 – Beverage serving activities\n- 56.21 – Event catering activities\n- 84.11 – General public administration activities\n- 56.11 – Restaurant activities\n- 64.19 – Other monetary intermediation\n- 56.40 – Intermediation service activities for food and beverage services activities\n\nActivity: “Café: coffee, tea and drinks, no full meals.”"}, {"role": "assistant", "content": "Code 56.30: Beverage serving activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 56.40 – Intermediation service activities for food and beverage services activities\n- 56.11 – Restaurant activities\n- 77.51 – Intermediation service activities for rental and leasing of cars, motorhomes and trailers\n- 47.74 – Retail sale of medical and orthopaedic goods\n- 56.22 – Contract catering service activities and other food service activities\n- 56.21 – Event catering activities\n\nActivity: “Restaurant with table service and seasonal cooking.”"}, {"role": "assistant", "content": "Code 56.11: Restaurant activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 43.42 – Other specialised construction activities in construction of buildings\n- 71.20 – Technical testing and analysis\n- 47.11 – Non-specialised retail sale of predominately food, beverages or tobacco\n- 43.21 – Electrical installation\n- 43.24 – Other construction installation\n- 43.22 – Plumbing, heat and air-conditioning installation\n\nActivity: “Plumber: water pipes and central heating.”"}, {"role": "assistant", "content": "Code 43.22: Plumbing, heat and air-conditioning installation.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 74.11 – Industrial product and fashion design activities\n- 77.31 – Rental and leasing of agricultural machinery and equipment\n- 91.12 – Archive activities\n- 43.60 – Intermediation service activities for specialised construction services\n- 66.22 – Activities of insurance agents and brokers\n- 43.32 – Joinery installation\n\nActivity: “What VAT rate applies to bread?”"}, {"role": "assistant", "content": "This information is not in the NACE classification, which describes activities and gives no rates, costs or amounts: I cannot answer from this source.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 96.21 – Hairdressing and barber activities\n- 96.30 – Funeral and related activities\n- 17.22 – Manufacture of household and sanitary goods and of toilet requisites\n- 96.91 – Provision of domestic personal service activities\n- 96.22 – Beauty care and other beauty treatment activities\n- 74.91 – Patent brokering and marketing service activities\n\nActivity: “Beauty salon: facials, manicure, waxing.”"}, {"role": "assistant", "content": "Code 96.22: Beauty care and other beauty treatment activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 55.30 – Camping grounds and recreational vehicle parks\n- 55.90 – Other accommodation\n- 49.41 – Freight transport by road\n- 55.20 – Holiday and other short-stay accommodation\n- 38.23 – Other waste recovery\n- 55.10 – Hotels and similar accommodation\n\nActivity: “I let holiday cottages to tourists.”"}, {"role": "assistant", "content": "Code 55.20: Holiday and other short-stay accommodation.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 88.10 – Social work activities without accommodation for older persons or persons with disabilities\n- 85.40 – Tertiary education\n- 85.69 – Educational support activities n.e.c.\n- 85.51 – Sports and recreation education\n- 85.52 – Cultural education\n- 10.12 – Processing and preserving of poultry meat\n\nActivity: “Driving school.”"}, {"role": "assistant", "content": "None of the classes in the extract matches this activity: I cannot give its code without the right line of the classification.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 95.29 – Repair and maintenance of personal and household goods n.e.c.\n- 95.31 – Repair and maintenance of motor vehicles\n- 95.22 – Repair and maintenance of household appliances and home and garden equipment\n- 16.21 – Manufacture of veneer sheets and wood-based panels\n- 95.23 – Repair and maintenance of footwear and leather goods\n- 98.20 – Undifferentiated service-producing activities of private households for own use\n\nActivity: “Garage: mechanical repairs and servicing of cars.”"}, {"role": "assistant", "content": "Code 95.31: Repair and maintenance of motor vehicles.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 10.71 – Manufacture of bread; manufacture of fresh pastry goods and cakes\n- 26.70 – Manufacture of optical instruments, magnetic and optical media and photographic equipment\n- 10.13 – Production of meat and poultry meat products\n- 43.32 – Joinery installation\n- 10.51 – Manufacture of dairy products\n- 10.31 – Processing and preserving of potatoes\n\nActivity: “I bake bread and pastries and sell them in my own bakery.”"}, {"role": "assistant", "content": "Code 10.71: Manufacture of bread; manufacture of fresh pastry goods and cakes.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 84.12 – Regulation of health care, education, cultural services and other social services\n- 68.32 – Other real estate activities on a fee or contract basis\n- 68.31 – Intermediation service activities for real estate activities\n- 68.20 – Rental and operating of own or leased real estate\n- 68.12 – Development of building projects\n- 32.91 – Manufacture of brooms and brushes\n\nActivity: “Estate agency: selling and letting homes for private clients.”"}, {"role": "assistant", "content": "Code 68.31: Intermediation service activities for real estate activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 10.20 – Processing and preserving of fish, crustaceans and molluscs\n- 81.23 – Other cleaning activities\n- 81.30 – Landscape service activities\n- 81.21 – General cleaning of buildings\n- 81.10 – Combined facilities support activities\n- 01.25 – Growing of other tree and bush fruits and nuts\n\nActivity: “Designing and maintaining gardens.”"}, {"role": "assistant", "content": "Code 81.30: Landscape service activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 38.11 – Collection of non-hazardous waste\n- 69.20 – Accounting, bookkeeping and auditing activities; tax consultancy\n- 18.14 – Binding and related services\n- 59.20 – Sound recording and music publishing activities\n- 32.91 – Manufacture of brooms and brushes\n- 86.94 – Nursing and midwifery activities\n\nActivity: “Law firm.”"}, {"role": "assistant", "content": "None of the classes in the extract matches this activity: I cannot give its code without the right line of the classification.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 46.72 – Wholesale of motor vehicle parts and accessories\n- 96.30 – Funeral and related activities\n- 96.23 – Day spa, sauna and steam bath activities\n- 60.31 – News agency activities\n- 96.21 – Hairdressing and barber activities\n- 96.22 – Beauty care and other beauty treatment activities\n\nActivity: “Hair salon for men and women.”"}, {"role": "assistant", "content": "Code 96.21: Hairdressing and barber activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 38.32 – Landfilling or permanent storage\n- 11.05 – Manufacture of beer\n- 11.06 – Manufacture of malt\n- 11.07 – Manufacture of soft drinks and bottled waters\n- 82.40 – Intermediation service activities for business support service activities n.e.c.\n- 11.04 – Manufacture of other non-distilled fermented beverages\n\nActivity: “Craft brewery: I brew and sell my own beer.”"}, {"role": "assistant", "content": "Code 11.05: Manufacture of beer.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 86.10 – Hospital activities\n- 86.95 – Physiotherapy activities\n- 86.93 – Activities of psychologists and psychotherapists, except medical doctors\n- 27.11 – Manufacture of electric motors, generators and transformers\n- 86.23 – Dental practice care activities\n- 94.91 – Activities of religious organisations\n\nActivity: “Physiotherapy practice.”"}, {"role": "assistant", "content": "Code 86.95: Physiotherapy activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 38.32 – Landfilling or permanent storage\n- 88.91 – Child day-care activities\n- 46.89 – Other specialised wholesale n.e.c.\n- 88.10 – Social work activities without accommodation for older persons or persons with disabilities\n- 88.99 – Other social work activities without accommodation n.e.c.\n- 82.91 – Activities of collection agencies and credit bureaus\n\nActivity: “Private nursery for children under three.”"}, {"role": "assistant", "content": "Code 88.91: Child day-care activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 43.21 – Electrical installation\n- 43.32 – Joinery installation\n- 25.62 – Manufacture of locks and hinges\n- 46.72 – Wholesale of motor vehicle parts and accessories\n- 43.24 – Other construction installation\n- 43.60 – Intermediation service activities for specialised construction services\n\nActivity: “Electrician: wiring in homes and offices.”"}, {"role": "assistant", "content": "Code 43.21: Electrical installation.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 74.30 – Translation and interpretation activities\n- 03.30 – Support activities for fishing and aquaculture\n- 74.14 – Other specialised design activities\n- 74.13 – Interior design activities\n- 17.24 – Manufacture of wallpaper\n- 74.99 – All other professional, scientific and technical activities n.e.c.\n\nActivity: “Translating technical documents into English.”"}, {"role": "assistant", "content": "Code 74.30: Translation and interpretation activities.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 classification (Eurostat):\n- 93.11 – Operation of sports facilities\n- 23.14 – Manufacture of glass fibres\n- 66.11 – Administration of financial markets\n- 93.19 – Sports activities n.e.c.\n- 93.21 – Activities of amusement parks and theme parks\n- 93.13 – Activities of fitness centres\n\nActivity: “Gym and fitness club.”"}, {"role": "assistant", "content": "Code 93.13: Activities of fitness centres.\n\nSource: NACE Rev. 2.1 classification (Eurostat, EU Vocabularies, CC BY 4.0)."}]}
{"messages": [{"role": "system", "content": "You assign the NACE Rev. 2.1 code of an activity. Answer only from the classes of the classification given in the message. If two codes remain possible, ask for the detail that separates them. If none fits, say so without giving a code from memory. End by citing the source."}, {"role": "user", "content": "Extract from the NACE Rev. 2.1 cl
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