What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Patricia is poor. Charles is an electrician. Karen is a musician.
Patricia is poor and Charles is an electrician. Patricia is poor and Karen is a musician. Charles is an electrician and Patricia is poor. Charles is an electrician and Karen is a musician. Karen is a musician and Patricia is poor. Karen is a musician and Charles is an electrician.