Question: who does the voice of buzz lightyear in toy story
[{'answer': 'Tim Allen', 'provenance': [{'wikipedia_id': '284331', 'title': 'Buzz Lightyear', 'start_paragraph_id': 2, 'start_character': 16, 'end_paragraph_id': 2, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]