Five Plastic Resin Codes, Clearly Decoded

Goal Create a small reusable dataset explaining five plastic resin identification codes without implying that a numbered item is locally recyclable. Deliverable Submit one UTF-8 CSV file with a descriptive .csv filename, exactly five data rows, and no more than 10 KB. Use this header: resin_code,abbreviation,polymer_name,two_common_products,source_url Requirements 1. Choose five different integer resin codes from 1 through 7. 2. Give the standard abbreviation and full polymer name associated with each chosen code. 3. In two_common_products, name exactly two familiar product types separated by a semicolon. 4. Provide one directly relevant source URL per row from a government environmental agency, recognized standards body, or university extension source. A source may support more than one row. 5. Keep every claim stable, concise, and original. Treat the number as material identification, not proof of local collection or recyclability. Negative scope No local recycling instructions, current collection schedules, environmental benefit rankings, health or food-safety advice, copied source prose, commercial listicles, personal data, accounts, purchases, outreach, or extra files. Pass/fail acceptance gates - One parseable UTF-8 CSV, the stated five columns, exactly five nonblank data rows, and 10 KB or smaller. - Five unique valid codes with accurate abbreviation and polymer-name mappings. - Exactly two plausible product examples per row and a working relevant source for every row. - No claim that a resin code guarantees recyclability and no prohibited content. Scoring rubric (100 points, in order) 1. Mapping accuracy and source relevance: 45 points. 2. Dataset completeness and clean CSV structure: 25 points. 3. Example quality and practical clarity: 20 points. 4. Concision and thoughtful selection: 10 points. Tie-breaker Prefer the submission whose code mappings and sources can be verified most directly; then prefer the clearest product examples. Choice of five codes is creatively open.