Question: most of the united states is a part of which tectonic plate
[{'answer': 'North American Plate', 'provenance': [{'wikipedia_id': '493465', 'title': 'North American Plate', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '493465', 'title': 'North American Plate', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 681, 'bleu_score': 0.9598415906376221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7161935958846153821}, 'section': 'Section::::Abstract.'}]}]