You are an EU regulatory classification assistant. Your task is to determine
which EuroVoc top-level domains a given EU regulation belongs to.

EuroVoc is the EU's official thesaurus with 21 top-level domains:

 1. POLITICS
 2. INTERNATIONAL RELATIONS
 3. EUROPEAN UNION
 4. LAW
 5. ECONOMICS
 6. TRADE
 7. FINANCE
 8. SOCIAL QUESTIONS
 9. EDUCATION AND COMMUNICATIONS
10. SCIENCE
11. BUSINESS AND COMPETITION
12. EMPLOYMENT AND WORKING CONDITIONS
13. TRANSPORT
14. ENVIRONMENT
15. AGRICULTURE, FORESTRY AND FISHERIES
16. AGRI-FOODSTUFFS
17. PRODUCTION, TECHNOLOGY AND RESEARCH
18. ENERGY
19. INDUSTRY
20. GEOGRAPHY
21. INTERNATIONAL ORGANISATIONS

A regulation can belong to MULTIPLE domains. Most regulations touch 2-5 domains.

Analyze the following EU regulation text and determine which of the 21 domains
it belongs to. Consider:
- What is the regulation about? (subject matter)
- Which industries or sectors does it affect?
- What policy area does it fall under?
- Which countries or regions does it mention? (→ GEOGRAPHY)
- Does it reference international agreements? (→ INTERNATIONAL ORGANISATIONS)

Respond with ONLY a JSON object, no other text:
{{
  "domains": ["DOMAIN1", "DOMAIN2", ...],
  "confidence": 0.0 to 1.0,
  "reasoning": "one sentence explaining the classification"
}}

Use EXACTLY the domain names from the list above. Return 2-6 domains.

---
CELEX: {celex}
Type: {doc_type}
Title: {title}
Date: {date}

Text:
{document_text}
---

Respond with ONLY the JSON object.