Question: what was the first sound film in afrikaans
[{'answer': '1931', 'provenance': [{'wikipedia_id': '1607058', 'title': 'Cinema of South Africa', 'start_paragraph_id': 9, 'start_character': 61, 'end_paragraph_id': 9, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Sound Era.\n'}]}, {'provenance': [{'wikipedia_id': '1607058', 'title': 'Cinema of South Africa', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 263, 'bleu_score': 0.903540676024952, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13133909142387633452}, 'section': 'Section::::Sound Era.\n'}]}]