Question: who played private ryan in the action film saving private ryan
[{'answer': 'Matt Damon', 'provenance': [{'wikipedia_id': '28269', 'title': 'Saving Private Ryan', 'start_paragraph_id': 1, 'start_character': 615, 'end_paragraph_id': 1, 'end_character': 625, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]