Question: lines of what run from the north pole to the south pole
[{'answer': 'meridian', 'provenance': [{'wikipedia_id': '629028', 'title': 'Meridian (geography)', 'start_paragraph_id': 1, 'start_character': 15, 'end_paragraph_id': 1, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '629028', 'title': 'Meridian (geography)', 'start_paragraph_id': 1, 'start_character': 28, 'end_paragraph_id': 1, 'end_character': 606, 'bleu_score': 0.7655641135405501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3417056926336917534}, 'section': 'Section::::Abstract.'}]}]