What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, if x_5 listens to a song, then x_5 is happy. For all x_5, if x_5 were a lawyer, then x_5 is playing tennis. For all x_5, if x_5 reads a book, then x_5 is a lawyer. For all x_5, if x_5 were happy, then x_5 is reading a book.
For all x_5, if x_5 listens to a song, then x_5 is reading a book. For all x_5, if x_5 reads a book, then x_5 is playing tennis. For all x_5, if x_5 were happy, then x_5 is a lawyer.