Question: what type of animal is silver from sonic the hedgehog
[{'answer': 'hedgehog', 'provenance': [{'wikipedia_id': '3410343', 'title': 'List of Sonic the Hedgehog characters', 'start_paragraph_id': 1, 'start_character': 153, 'end_paragraph_id': 1, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3410343', 'title': 'List of Sonic the Hedgehog characters', 'start_paragraph_id': 92, 'start_character': 0, 'end_paragraph_id': 92, 'end_character': 591, 'bleu_score': 0.926932721140841, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16864146934566381940}, 'section': 'Section::::Characters.:Silver the Hedgehog.\n'}]}]