Question: who plays mark twain in the movie ridiculous 6
[{'answer': 'Vanilla Ice', 'provenance': [{'wikipedia_id': '45640705', 'title': 'The Ridiculous 6', 'start_paragraph_id': 41, 'start_character': 168, 'end_paragraph_id': 41, 'end_character': 179, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '45640705', 'title': 'The Ridiculous 6', 'start_paragraph_id': 34, 'start_character': 0, 'end_paragraph_id': 34, 'end_character': 37, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9903549049056752413}, 'section': 'Section::::Cast.\n'}]}]