Question: when was the seismograph invented in ancient china
[{'answer': 'In 132', 'provenance': [{'wikipedia_id': '34542', 'title': 'Zhang Heng', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 6, 'bleu_score': 1.0, 'section': 'Section::::Life.:Official career.\n'}]}, {'provenance': [{'wikipedia_id': '34542', 'title': 'Zhang Heng', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 535, 'bleu_score': 0.9776501033621461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1114761413052501255}, 'section': 'Section::::Life.:Official career.\n'}]}]