Question: largest privately owned island in the united states
[{'answer': "Gardiner 's Island", 'provenance': [{'wikipedia_id': '643338', 'title': 'Gardiners Island', 'start_paragraph_id': 45, 'start_character': 66, 'end_paragraph_id': 45, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::History.:Challenges to private ownership.\n'}]}, {'provenance': [{'wikipedia_id': '643338', 'title': 'Gardiners Island', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 541, 'bleu_score': 0.835757342017136, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10184635637199340280}, 'section': 'Section::::Abstract.'}]}]