Question: when did richmond became the capital of virginia
[{'answer': '1742', 'provenance': [{'wikipedia_id': '53274', 'title': 'Richmond, Virginia', 'start_paragraph_id': 1, 'start_character': 205, 'end_paragraph_id': 1, 'end_character': 209, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53274', 'title': 'Richmond, Virginia', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 253, 'bleu_score': 0.716638539718864, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10524937267207943830}, 'section': 'Section::::Abstract.'}]}]