Question: when was the shot clock implemented in college basketball
[{'answer': 'the 1969 -- 70 season'}, {'provenance': [{'wikipedia_id': '1002256', 'title': 'Shot clock', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 831, 'bleu_score': 0.684756530864833, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7785313546810049071}, 'section': 'Section::::History.:Adoption by other leagues.\n'}]}]