Consider the following premises. For all x_5, if x_5 were a taxi driver, then x_5 is a server. For all x_5, if x_5 were a cashier, then x_5 is excited. For all x_5, if x_5 were excited, then x_5 is a musician. For all x_5, if x_5 were a musician, then x_5 is a taxi driver. Can we infer the following from them? For all x_5, if x_5 were a cashier, then x_5 is a server.
 From the fact that for all x_5, if x_5 were a musician, then x_5 is a taxi driver, and that for all x_5, if x_5 were a taxi driver, then x_5 is a server we can infer that for all x_5, if x_5 were a musician, then x_5 is a server. From the fact that for all x_5, if x_5 were a cashier, then x_5 is excited, and that for all x_5, if x_5 were excited, then x_5 is a musician we can infer that for all x_5, if x_5 were a cashier, then x_5 is a musician. Finally, from the fact that for all x_5, if x_5 were a cashier, then x_5 is a musician, and that for all x_5, if x_5 were a musician, then x_5 is a server we can infer that for all x_5, if x_5 were a cashier, then x_5 is a server. Therefore, the answer is yes.