Question: what happened to the group brighter side of darkness
[{'answer': 'disbanded in 1974', 'provenance': [{'wikipedia_id': '13288782', 'title': 'Brighter Side of Darkness', 'start_paragraph_id': 2, 'start_character': 293, 'end_paragraph_id': 2, 'end_character': 310, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13288782', 'title': 'Brighter Side of Darkness', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 310, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8653827731073381451}, 'section': 'Section::::Abstract.'}]}]