Question: what is the area code of washington dc
[{'answer': '202', 'provenance': [{'wikipedia_id': '2170013', 'title': 'Area code 202', 'start_paragraph_id': 0, 'start_character': 10, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2170013', 'title': 'Area code 202', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 0.9451524926983921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1367768986013740360}, 'section': 'Section::::Abstract.'}]}]