Question: what happened in 1875 that helped the hawaiian sugar industry grow
[{'answer': 'The Reciprocity Treaty of 1875', 'provenance': [{'wikipedia_id': '8363097', 'title': 'Sugar plantations in Hawaii', 'start_paragraph_id': 4, 'start_character': 817, 'end_paragraph_id': 4, 'end_character': 847, 'bleu_score': 1.0, 'section': 'Section::::Origins.\n'}]}, {'provenance': [{'wikipedia_id': '8363097', 'title': 'Sugar plantations in Hawaii', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 1691, 'bleu_score': 0.967023551609657, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10726581245736917185}, 'section': 'Section::::Origins.\n'}]}]