Question: how many islands are in the hawaiian chain
[{'answer': '137', 'provenance': [{'wikipedia_id': '158383', 'title': 'Hawaiian Islands', 'start_paragraph_id': 22, 'start_character': 27, 'end_paragraph_id': 22, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Islands and reefs.:Islets.\n'}]}, {'provenance': [{'wikipedia_id': '158383', 'title': 'Hawaiian Islands', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 239, 'bleu_score': 0.890257934258152, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10057335195268207986}, 'section': 'Section::::Islands and reefs.:Islets.\n'}]}]