Question: who sang a change is gonna come first
[{'answer': 'American recording artist Sam Cooke', 'provenance': [{'wikipedia_id': '3033793', 'title': 'A Change Is Gonna Come', 'start_paragraph_id': 1, 'start_character': 38, 'end_paragraph_id': 1, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3033793', 'title': 'A Change Is Gonna Come', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 369, 'bleu_score': 0.9204199807826591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16721858937473802192}, 'section': 'Section::::Abstract.'}]}]