Question: who sang the song what i did for love
[{'answer': 'Diana Morales', 'provenance': [{'wikipedia_id': '21174749', 'title': 'What I Did for Love (A Chorus Line)', 'start_paragraph_id': 3, 'start_character': 222, 'end_paragraph_id': 3, 'end_character': 235, 'bleu_score': 1.0, 'section': 'Section::::Synopsis within "A Chorus Line".\n'}]}, {'provenance': [{'wikipedia_id': '21174749', 'title': 'What I Did for Love (A Chorus Line)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 653, 'bleu_score': 0.982060959997838, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13823598282968659437}, 'section': 'Section::::Synopsis within "A Chorus Line".\n'}]}]