Given below are some facts and predicates for some knowledge base (KB). State if the unification for either variable x or y is possible or not. If the unification is possible then show the unified values for variables x and y. a. American (Bob), American (y) b. Enemy (Nono, America), Enemy(x,y) c. Weapon (Missile), soldTo (Missile, y), Weapon (x), soldTo (x, Nono) d. L(x, y), (L(y, x) ^ L(A, B))

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Predicates

A predicate is a function defined with set of variables, which returns the result True or False. The output of a predicate is a Boolean value as a response when given a set of parameters: