What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Thomas is a carpenter or Karen is not taking a plane. For all x_22, if x_22 were rich, then x_22 is taking a plane. If Charles were a poet, then Thomas is a carpenter. If it rains, then Karen is taking a plane. It is raining or Karen is rich.
If Karen takes a plane, then Thomas is a carpenter. If Karen sleeps, then it is raining.