Question: who explored the west coast of north america
[{'answer': 'Spanish', 'provenance': [{'wikipedia_id': '1015867', 'title': 'History of the west coast of North America', 'start_paragraph_id': 22, 'start_character': 9, 'end_paragraph_id': 22, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::European arrival (1513–1750).\n'}]}, {'provenance': [{'wikipedia_id': '1015867', 'title': 'History of the west coast of North America', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 671, 'bleu_score': 0.9826823455989031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7583799681733413285}, 'section': 'Section::::European arrival (1513–1750).\n'}]}]