What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_9, x_9 will write a letter or x_9 is curious. For all x_9, x_9 will take a plane. For all x_9, if x_9 takes a plane, then x_9 is a poet. For all x_9, if x_9 writes a letter, then x_9 is playing squash. For all x_9, if x_9 were curious, then x_9 is playing squash. For all x_9, if x_9 were a poet, then x_9 is a politician.
For all x_9, x_9 is a poet. For all x_9, if x_9 takes a plane, then x_9 is a politician. For all x_9, x_9 will play squash.