In the school cafeteria, Chinonso saw Keiko put a surprise gift in Amare's backpack when Amare was not present. Later, Lakshmi, who did not see Keiko put the gift in the backpack, tells Amare that she overheard Keiko planning a surprise for him. Amare guesses his surprise is in his backpack. Who knows for sure where Amare's surprise is and why?

Provide a very brief response.
Chinonso knows where Amare's surprise is because he directly observed Keiko place the gift in Amare's backpack. Keiko also knows where the surprise is for the same reason; she was the one who put it there. Amare does not know for sure where the surprise is, he only has a guess based on Lakshmi's information, which did not specify the location of the surprise. Lakshmi knows that a surprise was planned by Keiko, but she does not know the specifics of the surprise or its location since she only overheard the plan and did not see Keiko put the gift in the backpack.