Record 4d5ac98aaf8d4bc3a748a3c4caf63d48

We need to infer Sana's belief about where the heavy box is, based on observations. Timeline:

- 8:00: Sana moved heavy box into east wing. So she knows it's in east wing at that moment.
- 8:01: Kira took heavy box and placed it in storage room. At 8:01, Sana was nearby and saw this happen. So she saw Kira take it to storage room. So she knows it's now in storage room.
- 8:02: she carried the heavy box to the library. Wait: At 8:02, she carried the heavy box to the library. But earlier she saw Kira place it in storage room at 8:01. At 8:02, she carries the heavy box to the library. Who is "she"? Probably Sana. So Sana moves the heavy box from storage room? Or maybe she picks it up again? The timeline: At 8:01, Kira took the heavy box and placed it in the storage room. At 8:01, Sana was nearby and saw this happen. At 8:02, she carried the heavy box to the library. So Sana took the heavy box (presumably from storage room) and carried it to the library. So she knows it's now in library.

- 8:03: she brought the heavy box over to the security office. So she moves it again, now to security office. So she knows it's there.

- 8:04: she carried the heavy box to the gym. So now she knows it's in gym.

- 8:05: Kira brought the heavy box over to the storage room. At 8:05, Sana was nearby and saw this happen. So she sees Kira take the heavy box (presumably from gym?) and place it in storage room. So she knows it's now in storage room again.

- 8:06: she took the heavy box and placed it in the east wing. So she moves it back to east wing. So she knows it's there.

- 8:07: Wyatt carried the heavy box to the lobby. At 8:07, she was nearby and saw this happen. So she sees Wyatt take the heavy box (presumably from east wing) to lobby. So she knows it's now in lobby.

- 8:08: he carried the heavy box to the supply closet. At 8:08, she happened to be watching. So she sees it moved to supply closet. So she knows it's there.

- 8:09: Kira took the heavy box and placed it in the storage room. At 8:09, she saw this happen. So she knows it's now in storage room.

- 8:10: she brought the shiny box over to the west wing. This is about a shiny box, not heavy. Not relevant to heavy box location belief.

- 8:11: Sana moved the shiny box into the south stairwell. Not relevant.

- 8:12 onward: other actions.

Thus, at the end, what does Sana believe the heavy box is? She has observed multiple moves. The last observed movement of heavy box was at 8:09 when Kira placed it in storage room, and Sana saw it. After that, no further observations of heavy box by Sana. So she believes it's in storage room, unless she later sees something else? At 8:10 onward, she is dealing with shiny box, not heavy. So her belief about heavy box location is storage room.

Thus answer: storage room. The question: "Where does Sana believe the heavy box is? Answer with only the location name (or 'unknown' if they have no belief)." So answer: storage room.