What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Jennifer were a sailor, then James is playing tennis. If Robert were a bartender, then Jennifer is a sailor. If it rains, then Robert is a bartender. If James plays tennis, then it is raining.
If Jennifer were a sailor, then it is raining. If Robert were a bartender, then James is playing tennis. If it rains, then Jennifer is a sailor. If James plays tennis, then Robert is a bartender.