Question: which is the first company who defined risc architecture
[{'answer': 'Acorn Computers', 'provenance': [{'wikipedia_id': '60558', 'title': 'ARM architecture', 'start_paragraph_id': 6, 'start_character': 34, 'end_paragraph_id': 6, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '60558', 'title': 'ARM architecture', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 791, 'bleu_score': 0.984188478234951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 332701031185734040}, 'section': 'Section::::History.\n'}]}]