Question: who played helen in when harry met sally
[{'answer': 'Harley Kozak', 'provenance': [{'wikipedia_id': '33270', 'title': 'When Harry Met Sally...', 'start_paragraph_id': 20, 'start_character': 12, 'end_paragraph_id': 20, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '33270', 'title': 'When Harry Met Sally...', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 41, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1284053152764933930}, 'section': 'Section::::Cast.\n'}]}]