What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_3, x_3 is a lawyer. For all x_3, if x_3 were happy, then x_3 is working. There is at least one x_3 for which x_3 is happy.
There is at least one x_3 for which x_3 will work. There is at least one x_3 for which x_3 is happy and x_3 is a lawyer. There is at least one x_3 for which x_3 is a lawyer and x_3 is happy.