Consider the following premises. There is at least one x_11 for which if x_11 listens to a song, then x_11 is a taxi driver. For all x_11, if x_11 plays squash, then x_11 is a taxi driver. For all x_11, x_11 is not a sailor or x_11 will listen to a song. For all x_11, x_11 is a sailor or x_11 will play squash. Can we infer the following from them? If we can, name the inference rule being used: For all x_11, neither x_11 is a taxi driver nor x_11 is a server.
That contradicts the premises. Therefore the answer is no.