Consider the following premises. There is at least one x_7 for which x_7 will take a plane or x_7 is not a poet. For all x_7, if x_7 were sad, then x_7 is listening to a song. For all x_7, if x_7 takes a plane, then x_7 is sad. Can we infer the following from them? If we can, name the inference rule being used: For all x_7, the fact that x_7 were a poet does not imply that x_7 is listening to a song.
That contradicts the premises. Therefore the answer is no.