Record a87e043a43fa4319bfc1c633a39af8f0

At 8:00, Sofia moved the small box into the north stairwell. At 8:00, Freya was nearby and saw this happen. At 8:01, she moved the small box into the east wing. At 8:02, she took the small box and placed it in the security office. At 8:03, Sofia took the small box and placed it in the rooftop terrace. At 8:03, Freya was nearby and saw this happen. At 8:04, Sofia moved the small box into the north stairwell. At 8:04, Freya was nearby and saw this happen. At 8:05, Sofia brought the small box over to the server room. At 8:05, Freya was nearby and saw this happen. At 8:06, Hakim moved the small box into the north stairwell. At 8:06, she happened to be watching. At 8:07, Sofia moved the small box into the lobby. At 8:08, she brought the cracked box over to the security office. At 8:09, she took the cracked box and placed it in the lobby. At 8:10, Hakim reorganized some papers on the desk. At 8:11, he refilled a cup of coffee. At 8:12, Freya checked their email.

Recall:
At 8:00, Sofia moved the small box into the north stairwell.
At 8:00, Freya was nearby and saw this happen.
At 8:01, Freya moved the small box into the east wing.
At 8:02, Freya took the small box and placed it in the security office.
At 8:03, Sofia took the small box and placed it in the rooftop terrace.
At 8:03, Freya was nearby and saw this happen.
At 8:04, Sofia moved the small box into the north stairwell.
At 8:04, Freya was nearby and saw this happen.
At 8:05, Sofia brought the small box over to the server room.
At 8:05, Freya was nearby and saw this happen.
At 8:06, Hakim moved the small box into the north stairwell.
At 8:06, Freya happened to be watching.

Where does Freya believe the small box is? Answer with only the location name (or 'unknown' if they have no belief).

north stairwell

(no reasoning captured)