Question: how many steps does the cn tower have
[{'answer': '2,579', 'provenance': [{'wikipedia_id': '6112', 'title': 'CN Tower', 'start_paragraph_id': 46, 'start_character': 92, 'end_paragraph_id': 46, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Structure.\n'}]}, {'answer': '2,579 steps', 'provenance': [{'wikipedia_id': '6112', 'title': 'CN Tower', 'start_paragraph_id': 46, 'start_character': 92, 'end_paragraph_id': 46, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::Structure.\n'}]}, {'provenance': [{'wikipedia_id': '6112', 'title': 'CN Tower', 'start_paragraph_id': 46, 'start_character': 0, 'end_paragraph_id': 46, 'end_character': 946, 'bleu_score': 0.935297086458979, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 672819477371397845}, 'section': 'Section::::Structure.\n'}]}, {'provenance': [{'wikipedia_id': '6112', 'title': 'CN Tower', 'section': 'Section::::Structure.\n', 'start_paragraph_id': 46, 'end_paragraph_id': 46, 'meta': {'evidence_span': ['A metal staircase reaches the main deck level after 1,776 steps, and the SkyPod above after 2,579 steps; it is the tallest metal staircase on Earth. These stairs are intended for emergency use only and are not open to the public, except for twice per year for charity stair-climb events. The average climber takes approximately 30 minutes to climb to the base of the radome, but the fastest climb on record is 7 minutes and 52 seconds in 1989 by Brendan Keenoy, an Ontario Provincial Police officer. In 2002, Canadian Olympian and Paralympic champion Jeff Adams climbed the stairs of the tower in a specially designed wheelchair. The stairs were originally on one of the three sides of the tower (facing north), with a glass view, but these were later replaced with the third elevator pair and the stairs were moved to the inside of the core. Top climbs on the new, windowless stairwell used since around 2003 have generally been over ten minutes.', 'A metal staircase reaches the main deck level after 1,776 steps, and the SkyPod above after 2,579 steps; it is the tallest metal staircase on Earth.', 'A metal staircase reaches the main deck level after 1,776 steps, and the SkyPod above after 2,579 steps;']}}]}]