Question: who played alan dershowitz in reversal of fortune
[{'answer': 'Ron Silver', 'provenance': [{'wikipedia_id': '171011', 'title': 'Reversal of Fortune', 'start_paragraph_id': 1, 'start_character': 477, 'end_paragraph_id': 1, 'end_character': 487, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '171011', 'title': 'Reversal of Fortune', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 41, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16969838859232741194}, 'section': 'Section::::Cast.\n'}]}]