Question: who wrote the song our house is a very very fine house
[{'answer': 'Graham Nash', 'provenance': [{'wikipedia_id': '7594967', 'title': 'Our House (Crosby, Stills, Nash & Young song)', 'start_paragraph_id': 1, 'start_character': 59, 'end_paragraph_id': 1, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7594967', 'title': 'Our House (Crosby, Stills, Nash & Young song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 398, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2439614189782764980}, 'section': 'Section::::Abstract.'}]}]