Question: least count of vernier caliper and screw gauge
[{'answer': '0.02 mm'}, {'provenance': [{'wikipedia_id': '6001381', 'title': 'Least count', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 232, 'bleu_score': 0.804174017166795, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5945191828921129987}, 'section': 'Section::::Least count error.\n'}]}]