Question: what is the meaning of j c b
[{'answer': 'Joseph Cyril Bamford', 'provenance': [{'wikipedia_id': '1007853', 'title': 'JCB (company)', 'start_paragraph_id': 2, 'start_character': 27, 'end_paragraph_id': 2, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1007853', 'title': 'JCB (company)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 348, 'bleu_score': 0.8982226581125491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13340229990648277517}, 'section': 'Section::::Abstract.'}]}]