Record 4ad010121e324d199c72e52f31c28c7f

Ultra reads the prompt, this answer, the verified correct answer and the difficulty settings, then explains the mistake. The verifier's own classification is shown next to it for comparison.

At 8:00, Juno took the heavy folder and placed it in the gym. At 8:01, she moved the heavy folder into the south stairwell. At 8:02, Elliot carried the heavy folder to the supply closet. At 8:03, Dexter carried the heavy folder to the conference room. At 8:04, Juno moved the heavy folder into the print room. At 8:05, he moved the heavy folder into the lobby. At 8:06, he brought the heavy folder over to the courtyard. At 8:07, Elliot brought the heavy folder over to the east wing. At 8:08, Dexter took the heavy folder and placed it in the south stairwell. At 8:09, Juno carried the heavy folder to the observation deck. At 8:10, she carried the heavy folder to the north stairwell. At 8:11, Dexter brought the heavy folder over to the garage. At 8:12, she moved the heavy folder into the rooftop terrace. At 8:13, he brought the heavy folder over to the courtyard. At 8:14, Elliot moved the heavy folder into the kitchen. At 8:15, he moved the heavy folder into the reception area. At 8:16, Juno carried the heavy folder to the north stairwell. At 8:17, she took the heavy folder and placed it in the south stairwell. At 8:18, Elliot carried the heavy folder to the courtyard. At 8:19, she carried the heavy folder to the reception area. At 8:20, he carried the heavy folder to the west wing. At 8:21, he carried the heavy folder to the atrium. At 8:22, Juno brought the heavy folder over to the south stairwell. At 8:23, he carried the heavy folder to the loading dock. At 8:24, he brought the heavy folder over to the north stairwell. At 8:25, Juno took the heavy folder and placed it in the east wing. At 8:26, he carried the worn wrench to the basement. At 8:27, Dexter carried the worn wrench to the conference room. At 8:28, Elliot reorganized some papers on the desk. At 8:29, Dexter refilled a cup of coffee.

Where is the heavy folder now? Answer with only the location name.

north stairwell

(no reasoning captured)