Given the basic relations father(X,Y) meaning X is the father of Y mother(X,Y) female(X) meaning X is female male(X)

Define the following new relationships:

core-family parent, children, sibling i.e. core-family(X, Y) if X is Y's parent, child, or sibling h-mother-in-law husband's mother, under certain assumptions e.g. couples have children, etc.

facts using 4 basic relations

Draw with pen the family trees included in the database on the back of the last page of your hardcopy