Consider the following premises. For all x_6, if x_6 were an office clerk, then x_6 is a musician. There is at least one x_6 for which x_6 is an office clerk. For all x_6, x_6 is not a musician or x_6 is a sailor. Can we infer the following from them? There is at least one x_6 for which x_6 will climb a mountain or x_6 is a sailor.
 From the fact that for all x_6, if x_6 were an office clerk, then x_6 is a musician, and that there is at least one x_6 for which x_6 is an office clerk we can infer that there is at least one x_6 for which x_6 is a musician. From the fact that there is at least one x_6 for which x_6 is a musician we can infer that there is at least one x_6 for which x_6 is a musician or x_6 will climb a mountain. Finally, from the fact that there is at least one x_6 for which x_6 is a musician or x_6 will climb a mountain, and that for all x_6, x_6 is not a musician or x_6 is a sailor we can infer that there is at least one x_6 for which x_6 will climb a mountain or x_6 is a sailor. Therefore, the answer is yes.