Consider the following premises. For all x_9, if x_9 drinks water, then x_9 is driving a car. For all x_9, if x_9 were a sailor, then x_9 is driving a car. There is at least one x_9 for which x_9 is not a sailor. For all x_9, if x_9 drives a car, then x_9 is a sailor. Can we infer the following from them? There is at least one x_9 for which x_9 will not drink water.
 From the fact that for all x_9, if x_9 were a sailor, then x_9 is driving a car, and that for all x_9, if x_9 drives a car, then x_9 is a sailor we can infer that for all x_9, x_9 is a sailor if and only if x_9 will drive a car. From the fact that for all x_9, x_9 is a sailor if and only if x_9 will drive a car, and that there is at least one x_9 for which x_9 is not a sailor we can infer that there is at least one x_9 for which x_9 will not drive a car. Finally, from the fact that for all x_9, if x_9 drinks water, then x_9 is driving a car, and that there is at least one x_9 for which x_9 will not drive a car we can infer that there is at least one x_9 for which x_9 will not drink water. Therefore, the answer is yes.