Question: when was ellis island made into a museum
[{'answer': '1900', 'provenance': [{'wikipedia_id': '9806', 'title': 'Ellis Island', 'start_paragraph_id': 2, 'start_character': 273, 'end_paragraph_id': 2, 'end_character': 277, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]