Consider the following premises. For all x_2, if x_2 takes a plane, then x_2 is playing tennis. For all x_2, if x_2 drinks water, then x_2 is taking a plane. For all x_2, x_2 will not drink water. For all x_2, if x_2 plays tennis, then x_2 is drinking water. Can we infer the following from them? There is at least one x_2 for which x_2 will play tennis.
 From the fact that for all x_2, if x_2 drinks water, then x_2 is taking a plane, and that for all x_2, if x_2 takes a plane, then x_2 is playing tennis we can infer that for all x_2, if x_2 drinks water, then x_2 is playing tennis. From the fact that for all x_2, if x_2 plays tennis, then x_2 is drinking water, and that for all x_2, if x_2 drinks water, then x_2 is playing tennis we can infer that for all x_2, x_2 will play tennis if and only if x_2 will drink water. Finally, from the fact that for all x_2, x_2 will play tennis if and only if x_2 will drink water, and that for all x_2, x_2 will not drink water we can infer that for all x_2, x_2 will not play tennis, which contradicts that There is at least one x_2 for which x_2 will play tennis. Therefore, the answer is no.