Question: tool used to measure distance on a map
[{'answer': 'Opisometers', 'provenance': [{'wikipedia_id': '622189', 'title': 'Opisometer', 'start_paragraph_id': 4, 'start_character': 110, 'end_paragraph_id': 4, 'end_character': 121, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '622189', 'title': 'Opisometer', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 216, 'bleu_score': 0.9419661180380051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1930261062511075122}, 'section': 'Section::::Abstract.'}]}]