Record a4090e7bf0644567b2430000d5fff583

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 8:09, Ivo took the narrow basket and placed it in the utility closet. At 8:10, he brought the narrow basket over to the observation deck. At 8:11, Uma moved the narrow basket into the server room. At 8:12, he carried the narrow basket to the front office. At 8:13, Oscar reorganized some papers on the desk. At 8:14, Uma refilled a cup of coffee. At 8:15, Roman glanced at the clock. At 8:16, Ivo glanced at the clock. At 8:17, he reorganized some papers on the desk. At 8:18, Oscar refilled a cup of coffee. At 8:20, he glanced at the clock. At 8:08, Uma moved the narrow basket into the observation deck. At 8:21, she stretched and looked out the window. At 8:22, Roman checked their email. At 8:23, he refilled a cup of coffee. At 8:24, he glanced at the clock. At 8:25, Oscar checked their email. At 8:19, Ivo refilled a cup of coffee. At 8:00, Oscar took the dusty tablet and placed it in the utility closet. At 8:00, Roman noticed this from across the room. At 8:01, Oscar moved the dusty tablet into the server room. At 8:02, Ivo carried the dusty tablet to the north stairwell. At 8:03, Uma carried the dusty tablet to the rooftop terrace. At 8:04, Oscar took the dusty tablet and placed it in the conference room. At 8:05, Roman brought the narrow basket over to the north stairwell. At 8:06, Uma took the narrow basket and placed it in the server room. At 8:07, Oscar took the narrow basket and placed it in the conference room.

Where does Roman believe the dusty tablet is? Answer with only the location name (or 'unknown' if they have no belief).

conference room

(no reasoning captured)