What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, if x_7 were a musician, then x_7 is rich. For all x_7, if x_7 sleeps, then x_7 is a musician. There is at least one x_7 for which if x_7 were a taxi driver, then x_7 is a musician. For all x_7, x_7 is a taxi driver or x_7 will sleep.
For all x_7, if x_7 sleeps, then x_7 is rich. There is at least one x_7 for which if x_7 were a taxi driver, then x_7 is rich. There is at least one x_7 for which x_7 is a musician.