Question: who was the voice of chance in homeward bound
[{'answer': 'Michael J. Fox', 'provenance': [{'wikipedia_id': '1212256', 'title': 'Homeward Bound: The Incredible Journey', 'start_paragraph_id': 3, 'start_character': 18, 'end_paragraph_id': 3, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]