Question: when did colorado become part of the united states
[{'answer': 'August 1 , 1876', 'provenance': [{'wikipedia_id': '412152', 'title': 'History of Colorado', 'start_paragraph_id': 32, 'start_character': 148, 'end_paragraph_id': 32, 'end_character': 164, 'bleu_score': 1.0, 'section': 'Section::::Colorado becomes a state.\n'}]}, {'provenance': [{'wikipedia_id': '412152', 'title': 'History of Colorado', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 474, 'bleu_score': 0.9748377259086851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6362014554230393451}, 'section': 'Section::::Colorado becomes a state.\n'}]}]