What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Susan is a soldier if and only if it is sunny. Susan is a soldier or Linda is a poet. Linda is a poet if and only if it is sunny.
If Susan were a soldier, then it is sunny. If Linda were a poet, then it is sunny. If it is sunny, then Susan is a soldier. If it is sunny, then Linda is a poet.