Question: what does the lake erie water snake eat
[{'answer': 'round goby', 'provenance': [{'wikipedia_id': '30865322', 'title': 'Northern water snake', 'start_paragraph_id': 18, 'start_character': 516, 'end_paragraph_id': 18, 'end_character': 526, 'bleu_score': 1.0, 'section': 'Section::::Behavior.\n'}]}, {'provenance': [{'wikipedia_id': '30865322', 'title': 'Northern water snake', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 592, 'bleu_score': 0.9550237800704321, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8764483960244177611}, 'section': 'Section::::Behavior.\n'}]}]