Question: what is the official residence of the vice president of the united states
[{'answer': 'Number One Observatory Circle', 'provenance': [{'wikipedia_id': '22685092', 'title': 'Number One Observatory Circle', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22685092', 'title': 'Number One Observatory Circle', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 98, 'bleu_score': 0.8781879837907131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15029803348287711999}, 'section': 'Section::::Abstract.'}]}]