Question: the first two film versions of show boat (1929 and 1936 respectively) were produced by what studio
[{'answer': 'Universal', 'provenance': [{'wikipedia_id': '429885', 'title': 'Show Boat', 'start_paragraph_id': 112, 'start_character': 74, 'end_paragraph_id': 112, 'end_character': 83, 'bleu_score': 1.0, 'section': 'Section::::Production history.:American revivals and 1936 film.\n'}]}]