Xiomara places her favorite pen in a drawer and leaves the room. While she is gone, Amadeus comes in and moves the pen from the drawer to the shelf because he needs to make space for his supplies. Afterward, Priyanka enters the room and, not realizing the pen's importance to Xiomara, takes it to her own desk for use. Later in the day, Xiomara, Amadeus, and Priyanka meet in the lounge. Xiomara is looking for her pen and asks if either of them has seen it. Amadeus saw Priyanka with a pen at her desk earlier but did not realize it was Xiomara's. Priyanka does not mention taking the pen as she does not know its significance to Xiomara. Based on everyone's knowledge and actions, who knows where Xiomara's pen is, and how will each of them respond to her question?

Provide a brief response.
Xiomara knows she originally placed her pen in the drawer, but since then, she has no knowledge of the movements it made. She expects the pen to still be in the drawer and has no reason to think otherwise until she checks and find it missing. Amadeus knows that the pen was moved from the drawer to the shelf to make space for his supplies, but he is not aware that the pen was taken by Priyanka or that it was of particular importance to Xiomara. Upon hearing Xiomara's question, he might suggest she checks the shelf, believing that's where the pen should be, not realizing Priyanka took it. Priyanka knows that she took a pen to her desk but is unaware that it is Xiomara's favorite pen or that it was moved from the shelf where she found it. Unless Amadeus mentions seeing her with a pen at her desk, she has no reason to connect the pen she took with Xiomara's missing pen. Therefore, she might not respond at all to Xiomara's question, not realizing the relevance. Only Amadeus has partial knowledge of the pen's whereabouts after Xiomara left it in the drawer, but since he didn't see Priyanka take it, he cannot provide the full answer. Priyanka has the pen but lacks the knowledge to connect it to Xiomara's question, and thus only Priyanka could definitively return the pen but she won't, due to her unawareness that it's the missing pen in question.