Consider the following premises. For all x_14, if x_14 works, then x_14 is sleeping. For all x_14, if x_14 were a doctor, then x_14 is a soldier. There is at least one x_14 for which x_14 will work or x_14 is a doctor. For all x_14, x_14 is a soldier if and only if x_14 will go running. For all x_14, if x_14 sleeps, then x_14 is a soldier. Can we infer the following from them? There is at least one x_14 for which x_14 will go running.
 From the fact that for all x_14, if x_14 works, then x_14 is sleeping, and that for all x_14, if x_14 sleeps, then x_14 is a soldier we can infer that for all x_14, if x_14 works, then x_14 is a soldier. From the fact that for all x_14, if x_14 works, then x_14 is a soldier, that for all x_14, if x_14 were a doctor, then x_14 is a soldier, and that there is at least one x_14 for which x_14 will work or x_14 is a doctor we can infer that there is at least one x_14 for which x_14 is a soldier. From the fact that for all x_14, x_14 is a soldier if and only if x_14 will go running we can infer that for all x_14, if x_14 were a soldier, then x_14 is running. Finally, from the fact that for all x_14, if x_14 were a soldier, then x_14 is running, and that there is at least one x_14 for which x_14 is a soldier we can infer that there is at least one x_14 for which x_14 will go running. Therefore, the answer is yes.