Question: who proposed the civil rights act of 1964
[{'answer': 'President John F. Kennedy', 'provenance': [{'wikipedia_id': '188746', 'title': 'Civil Rights Act of 1964', 'start_paragraph_id': 3, 'start_character': 37, 'end_paragraph_id': 3, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '188746', 'title': 'Civil Rights Act of 1964', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 413, 'bleu_score': 0.811708791266031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 216381099297953158}, 'section': 'Section::::Abstract.'}]}]