Consider the following premises. For all x_14, if x_14 were sad, then x_14 is a server. For all x_14, x_14 is not a server. There is at least one x_14 for which x_14 will drink water or x_14 is a cashier. For all x_14, if x_14 drinks water, then x_14 is sad. Can we infer the following from them? There is at least one x_14 for which x_14 is a cashier or x_14 is excited.
 From the fact that for all x_14, if x_14 were sad, then x_14 is a server, and that for all x_14, x_14 is not a server we can infer that for all x_14, x_14 is not sad. From the fact that for all x_14, if x_14 drinks water, then x_14 is sad, and that for all x_14, x_14 is not sad we can infer that for all x_14, x_14 will not drink water. From the fact that there is at least one x_14 for which x_14 will drink water or x_14 is a cashier, and that for all x_14, x_14 will not drink water we can infer that there is at least one x_14 for which x_14 is a cashier. Finally, from the fact that there is at least one x_14 for which x_14 is a cashier we can infer that there is at least one x_14 for which x_14 is a cashier or x_14 is excited. Therefore, the answer is yes.