Question: when did the construction of the white house begin
[{'answer': 'October 13 , 1792', 'provenance': [{'wikipedia_id': '33057', 'title': 'White House', 'start_paragraph_id': 18, 'start_character': 76, 'end_paragraph_id': 18, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Early history.:Construction.\n'}]}, {'provenance': [{'wikipedia_id': '33057', 'title': 'White House', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 833, 'bleu_score': 0.742883337654172, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13651203741816859513}, 'section': 'Section::::Early history.:Construction.\n'}]}]