Question: who sang never can say goodbye in 1974
[{'answer': 'disco diva Gloria Gaynor'}, {'provenance': [{'wikipedia_id': '1816653', 'title': 'Never Can Say Goodbye', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 427, 'bleu_score': 0.7936529957423181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10074191800615536410}, 'section': 'Section::::Abstract.'}]}]