Question: what state is area code 978 in usa
[{'answer': 'Massachusetts', 'provenance': [{'wikipedia_id': '4377511', 'title': 'Area codes 978 and 351', 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4377511', 'title': 'Area codes 978 and 351', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 467, 'bleu_score': 0.9597380797151961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10512485969594976939}, 'section': 'Section::::Abstract.'}]}]