Question: three mile island was the site of which disaster
[{'answer': 'Three Mile Island accident', 'provenance': [{'wikipedia_id': '105856', 'title': 'Three Mile Island accident', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '105856', 'title': 'Three Mile Island accident', 'start_paragraph_id': 1, 'start_character': 57, 'end_paragraph_id': 1, 'end_character': 450, 'bleu_score': 0.639887377067558, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16057450944361890705}, 'section': 'Section::::Abstract.'}]}]