What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? James is a poet if and only if it is overcast. James is not a poet. If Patricia makes tea, then it is not cloudy. It is overcast or it is cloudy.
If James were a poet, then it is overcast. If it is overcast, then James is a poet. It is not overcast.