Question: when was the pacific fleet moved to pearl harbor
[{'answer': '1940', 'provenance': [{'wikipedia_id': '165220', 'title': 'United States Pacific Fleet', 'start_paragraph_id': 3, 'start_character': 326, 'end_paragraph_id': 3, 'end_character': 330, 'bleu_score': 1.0, 'section': 'Section::::Origins.\n'}]}, {'provenance': [{'wikipedia_id': '165220', 'title': 'United States Pacific Fleet', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 909, 'bleu_score': 0.9868845362499331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7532067057760315400}, 'section': 'Section::::Origins.\n'}]}]