Consider the following premises. For all x_11, x_11 will go running. For all x_11, x_11 is an artist if and only if x_11 is a politician. For all x_11, x_11 is a politician or x_11 is a poet. For all x_11, if x_11 were a poet, then x_11 is an artist. Can we infer the following from them? If we can, name the inference rule being used: William is not running.
That contradicts the premises. Therefore the answer is no.