Question: which two plates meet along the west coast of the usa
[{'answer': 'Queen Charlotte Fault', 'provenance': [{'wikipedia_id': '493465', 'title': 'North American Plate', 'start_paragraph_id': 4, 'start_character': 432, 'end_paragraph_id': 4, 'end_character': 453, 'bleu_score': 1.0, 'section': 'Section::::Boundaries.\n'}]}, {'answer': 'San Andreas Fault', 'provenance': [{'wikipedia_id': '493465', 'title': 'North American Plate', 'start_paragraph_id': 5, 'start_character': 145, 'end_paragraph_id': 5, 'end_character': 162, 'bleu_score': 1.0, 'section': 'Section::::Boundaries.\n'}]}, {'provenance': [{'wikipedia_id': '493465', 'title': 'North American Plate', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 274, 'bleu_score': 0.9569637990759251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12331832935615725949}, 'section': 'Section::::Boundaries.\n'}]}]