What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_11, if x_11 reads a book, then x_11 is listening to a song. For all x_11, x_11 will not sleep. For all x_11, x_11 will go running or x_11 will read a book. There is at least one x_11 for which if x_11 goes running, then x_11 is listening to a song. For all x_11, x_11 will sleep or x_11 is a mechanic.
For all x_11, x_11 is a mechanic. There is at least one x_11 for which x_11 will listen to a song.