Question: who invented the latitude and longitude grid system
[{'answer': 'Hipparchus', 'provenance': [{'wikipedia_id': '13980071', 'title': 'History of longitude', 'start_paragraph_id': 4, 'start_character': 131, 'end_paragraph_id': 4, 'end_character': 141, 'bleu_score': 1.0, 'section': 'Section::::Ancient history.\n'}]}, {'provenance': [{'wikipedia_id': '13980071', 'title': 'History of longitude', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 560, 'bleu_score': 0.9559054761834711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14887601509093225408}, 'section': 'Section::::Ancient history.\n'}]}]