Question: what is taller cn tower or empire state building
[{'answer': 'CN Tower', 'provenance': [{'wikipedia_id': '34080', 'title': 'List of tallest buildings and structures', 'start_paragraph_id': 2, 'start_character': 289, 'end_paragraph_id': 2, 'end_character': 297, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]