What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_16, x_16 will play squash. For all x_16, if x_16 were curious, then x_16 is happy. There is at least one x_16 for which if x_16 were a taxi driver, then x_16 is curious. For all x_16, if x_16 takes a plane, then x_16 is curious. For all x_16, x_16 is a taxi driver or x_16 will take a plane.
For all x_16, if x_16 takes a plane, then x_16 is happy. There is at least one x_16 for which if x_16 were a taxi driver, then x_16 is happy. There is at least one x_16 for which x_16 is curious.