What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Patricia were sad, then it is cold. If it is overcast, then Patricia is sad. If it is cold, then it is raining. It is overcast or it is not raining.
If Patricia were sad, then it is raining. If it is overcast, then it is cold. If it rains, then it is overcast.