Question: who designed the national coat of arms of south africa
[{'answer': 'Iaan Bekker', 'provenance': [{'wikipedia_id': '28588', 'title': 'Coat of arms of South Africa', 'start_paragraph_id': 3, 'start_character': 445, 'end_paragraph_id': 3, 'end_character': 456, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '28588', 'title': 'Coat of arms of South Africa', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 476, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4259660462680601315}, 'section': 'Section::::History.\n'}]}]