Question: what was the main target of the japanese kamikaze pilots
[{'answer': 'Allied naval vessels', 'provenance': [{'wikipedia_id': '16625', 'title': 'Kamikaze', 'start_paragraph_id': 1, 'start_character': 147, 'end_paragraph_id': 1, 'end_character': 167, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16625', 'title': 'Kamikaze', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 442, 'bleu_score': 0.818895639845522, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7878109370126104292}, 'section': 'Section::::Abstract.'}]}]