In the office at Ruby Tech, there are three staff members working today: Keanu, Elora, and Yasmine. Keanu saw both Elora and Yasmine in the morning. In the afternoon, Elora left for a meeting outside before Yasmine arrived back from her lunch break. While Elora was gone, Yasmine placed a very important document on Elora's desk and then informed Keanu about this before Yasmine left early for the day. When Elora returned, she did not check her desk and instead went straight to speak with Keanu about the outcome of the meeting. Given this information, who knows where the important document is?

Provide a very brief response.
Keanu knows where the important document is. Since Yasmine informed Keanu about placing the document on Elora's desk before leaving, Keanu has direct knowledge of the document's whereabouts. Yasmine also knows because she is the one who placed it there. However, Elora does not know where the document is because she went directly to speak with Keanu without checking her desk upon returning to the office. Elora's awareness of the document's placement depends on whether Keanu decides to tell her during their conversation about the meeting's outcome.