find the model of KB for this horn clauses

what is the solution of the KB??

what is the solution of the KB??

what is the solution of the KB??

what is the solution of the KB??

what is the solution of KB?

TO Example 2.2: Consider the knowledge base KB W(X,Y):- P(X), Q(Y) // The Horn clause is a rule, with P(X), Q(Y) the body head. and W(X,Y) the head. head empty ?-R(X,Y).Q(Y). // The Horn clause is a query with R(X,Y), Q(Y) the body