Question: what does it mean when a map projection distorts the earth
[{'answer': 'Theorema Egregium', 'provenance': [{'wikipedia_id': '51784', 'title': 'Map projection', 'start_paragraph_id': 5, 'start_character': 32, 'end_paragraph_id': 5, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '51784', 'title': 'Map projection', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 500, 'bleu_score': 0.8919970702625121, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2991456271925285691}, 'section': 'Section::::Background.\n'}]}]