Question: who plays buck in ice age collision course
[{'answer': 'Simon Pegg', 'provenance': [{'wikipedia_id': '47460310', 'title': 'Ice Age: Collision Course', 'start_paragraph_id': 1, 'start_character': 491, 'end_paragraph_id': 1, 'end_character': 501, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]