Question: who first sang diamonds are a girl's best friend
[{'answer': 'Carol Channing', 'provenance': [{'wikipedia_id': '5095185', 'title': "Diamonds Are a Girl's Best Friend", 'start_paragraph_id': 1, 'start_character': 65, 'end_paragraph_id': 1, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5095185', 'title': "Diamonds Are a Girl's Best Friend", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 238, 'bleu_score': 0.953991849837532, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2007789837685431795}, 'section': 'Section::::Abstract.'}]}]