Record a4ad80832b8d4b88acfbeb40280e7eaa

At 8:07, Omar carried the sturdy folder to the lobby. At 8:08, Cyrus took the sturdy folder and placed it in the north stairwell. At 8:09, Omar took the sturdy folder and placed it in the lobby. At 8:10, Lucas brought the sturdy folder over to the library. At 8:11, he reorganized some papers on the desk. At 8:13, he glanced at the clock. At 8:14, Cyrus glanced at the clock. At 8:15, Lucas reorganized some papers on the desk. At 8:16, Xiomara refilled a cup of coffee. At 8:06, Cyrus took the sturdy folder and placed it in the library. At 8:17, Lucas checked their email. At 8:18, he refilled a cup of coffee. At 8:19, he glanced at the clock. At 8:20, Cyrus checked their email. At 8:12, he refilled a cup of coffee. At 8:00, he moved the small wrench into the library. At 8:00, Lucas was nearby and saw this happen. At 8:01, Xiomara carried the small wrench to the security office. At 8:02, Cyrus brought the small wrench over to the boiler room. At 8:03, she moved the small wrench into the north stairwell. At 8:04, she moved the small wrench into the wine cellar. At 8:05, Omar brought the sturdy folder over to the workshop.

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

library

(no reasoning captured)