Question: who played bernardo in the movie west side story
[{'answer': 'George Chakiris', 'provenance': [{'wikipedia_id': '779431', 'title': 'George Chakiris', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '779431', 'title': 'George Chakiris', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 347, 'bleu_score': 0.923768200931469, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2636061423445942473}, 'section': 'Section::::Abstract.'}]}]