Consider the following premises. For all x_11, x_11 is a soldier or x_11 is a janitor. There is at least one x_11 for which x_11 will not climb a mountain. For all x_11, if x_11 were a soldier, then x_11 is climbing a mountain. Can we infer the following from them? For all x_11, neither x_11 is a janitor nor x_11 is a poet.
That contradicts the premises. Therefore the answer is no.