Question: who led the development of the ibm personal computer
[{'answer': 'Don Estridge', 'provenance': [{'wikipedia_id': '15032', 'title': 'IBM Personal Computer', 'start_paragraph_id': 1, 'start_character': 283, 'end_paragraph_id': 1, 'end_character': 295, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '15032', 'title': 'IBM Personal Computer', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 352, 'bleu_score': 0.9679895851501501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13453166663023673939}, 'section': 'Section::::Abstract.'}]}]