Question: when was texas annexed by the united states
[{'answer': 'December 29 , 1845', 'provenance': [{'wikipedia_id': '355738', 'title': 'Texas annexation', 'start_paragraph_id': 67, 'start_character': 99, 'end_paragraph_id': 67, 'end_character': 118, 'bleu_score': 1.0, 'section': 'Section::::Annexation and admittance.\n'}]}, {'provenance': [{'wikipedia_id': '355738', 'title': 'Texas annexation', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 175, 'bleu_score': 0.8592899528284991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14839297186566441530}, 'section': 'Section::::Abstract.'}]}]