Question: who sang san francisco flowers in your hair
[{'answer': 'Scott McKenzie', 'provenance': [{'wikipedia_id': '7921420', 'title': 'San Francisco (Be Sure to Wear Flowers in Your Hair)', 'start_paragraph_id': 1, 'start_character': 120, 'end_paragraph_id': 1, 'end_character': 134, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7921420', 'title': 'San Francisco (Be Sure to Wear Flowers in Your Hair)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 306, 'bleu_score': 0.774232197589625, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2950217704557577638}, 'section': 'Section::::Abstract.'}]}]