What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If Richard drinks water, then it is sunny. Joseph is not making tea or it is late. If it is late, then it is sunny. Joseph is making tea or Karen is playing tennis. If Karen plays tennis, then Richard is drinking water.
If Karen plays tennis, then it is sunny. Karen is playing tennis or it is late.