1. There are many possible kinship relationships you could imagine like mother, father, great-aunt, second-cousin-twice-removed, and natural-paternal-uncle. Some of these can be defined in terms of the others, for example:

brother(X, Y) ← father(X, Z) ∧ natural_paternal_uncle(Y, Z) .

sister(X, Y) ← parent(Z, X) ∧ parent(Z, Y) ∧

female(X) ∧ different(X, Y) .

Give two quite different representations for kinship relationships based on different relations being primitive.

Consider representing the primitive kinship relationship using relation children(Mother, Father, List_of_children)

What advantages or disadvantages may this representation have compared to the two you designed above?