Question: when did el paso become part of texas
[{'answer': '1850', 'provenance': [{'wikipedia_id': '24901485', 'title': 'History of El Paso, Texas', 'start_paragraph_id': 17, 'start_character': 103, 'end_paragraph_id': 17, 'end_character': 107, 'bleu_score': 1.0, 'section': 'Section::::Texas independence.\n'}]}, {'provenance': [{'wikipedia_id': '24901485', 'title': 'History of El Paso, Texas', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 107, 'bleu_score': 0.9021315316859231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18309749805249215120}, 'section': 'Section::::Texas independence.\n'}]}]