What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_10 for which x_10 is a sailor and x_10 is an astronaut. For all x_10, if x_10 were an office clerk, then x_10 is taking a plane. For all x_10, x_10 is an office clerk.
For all x_10, x_10 will take a plane. There is at least one x_10 for which x_10 is a sailor. There is at least one x_10 for which x_10 is an astronaut.