Question: who played will hunting in good will hunting
[{'answer': 'Matt Damon', 'provenance': [{'wikipedia_id': '142456', 'title': 'Good Will Hunting', 'start_paragraph_id': 1, 'start_character': 104, 'end_paragraph_id': 1, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]