Question: when did the nba start using breakaway rims
[{'answer': '1981 -- 82 season'}, {'provenance': [{'wikipedia_id': '21021878', 'title': 'Breakaway rim', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 320, 'bleu_score': 0.9019629427251671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7877848887658152709}, 'section': 'Section::::Abstract.'}]}]