Question: how long were the pyramids the tallest structure
[{'answer': 'over 3,800 years', 'provenance': [{'wikipedia_id': '23569712', 'title': "History of the world's tallest buildings", 'start_paragraph_id': 6, 'start_character': 206, 'end_paragraph_id': 6, 'end_character': 221, 'bleu_score': 1.0, 'section': 'Section::::Definition of terms.:Meaning of "building".\n'}]}, {'answer': 'over 3,800', 'provenance': [{'wikipedia_id': '23569712', 'title': "History of the world's tallest buildings", 'start_paragraph_id': 6, 'start_character': 206, 'end_paragraph_id': 6, 'end_character': 215, 'bleu_score': 1.0, 'section': 'Section::::Definition of terms.:Meaning of "building".\n'}]}, {'answer': 'over 3,800 years , until the construction of Lincoln Cathedral in 1300'}, {'provenance': [{'wikipedia_id': '23569712', 'title': "History of the world's tallest buildings", 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 527, 'bleu_score': 0.8912192009119331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7095937862549635301}, 'section': 'Section::::Definition of terms.:Meaning of "building".\n'}]}, {'provenance': [{'wikipedia_id': '23569712', 'title': "History of the world's tallest buildings", 'section': 'Section::::Definition of terms.:Meaning of "building".\n', 'start_paragraph_id': 6, 'end_paragraph_id': 6, 'meta': {'evidence_span': ['over 3,800 years', 'The earliest structures now known to be the tallest in the world were the Egyptian pyramids, with the Great Pyramid of Giza, at an original height of , being the tallest man-made structure in the world for over 3,800 years, until the construction of Lincoln Cathedral in 1311', 'The earliest structures now known to be the tallest in the world were the Egyptian pyramids, with the Great Pyramid of Giza, at an original height of , being the tallest man-made structure in the world for over 3,800 years, until the construction of Lincoln Cathedral in 1311.']}}]}]