Question: who played tom buchanan in the great gatsby
[{'answer': 'Joel Edgerton', 'provenance': [{'wikipedia_id': '30951080', 'title': 'The Great Gatsby (2013 film)', 'start_paragraph_id': 1, 'start_character': 253, 'end_paragraph_id': 1, 'end_character': 266, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30951080', 'title': 'The Great Gatsby (2013 film)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 142, 'bleu_score': 0.737835134226906, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15688852812229332380}, 'section': 'Section::::Cast.\n'}]}]