human
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
In a museum, there are three exhibition halls: Hall X, Hall Y, and Hall Z. The curator hides a special artifact in one of the halls for visitors to find. He tells everyone that the artifact is not in Hall X. Later, a group of friends overhears a museum staff member saying that the artifact is also not in Hall Y. However, they decide not to share this information with other visitors. What do the friends think about the location of the artifact compared to the other visitors who only heard the first clue? Provide a very brief response.

### Response:
gpt
The friends who overheard the museum staff member have more information than other visitors who only heard the first clue from the curator. The curator's statement that the artifact is not in Hall X leaves Hall Y and Hall Z as possible locations for the artifact from the perspective of most visitors. However, with the additional information that the artifact is not in Hall Y, the friends can deduce that the only remaining location where the artifact can be is Hall Z. The other visitors, lacking this piece of information, would still consider both Hall Y and Hall Z as potential hiding places for the artifact. Therefore, the friends have a more precise understanding of the artifact's location, thinking it is in Hall Z, while other visitors are uncertain between Hall Y and Hall Z.