Question: when was the first personal computer made available
[{'answer': '1956', 'provenance': [{'wikipedia_id': '18457137', 'title': 'Personal computer', 'start_paragraph_id': 8, 'start_character': 556, 'end_paragraph_id': 8, 'end_character': 560, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]