Question: 7. (8%) You are given the following Prolog code. foo (alice, carol). bar (bob, carol). bar (bob, dave). bar (eve, bob). qux (X, Y)

7. (8%) You are given the following Prolog code. foo (alice, carol).

7. (8%) You are given the following Prolog code. foo (alice, carol). bar (bob, carol). bar (bob, dave). bar (eve, bob). qux (X, Y) :- ham (Z, X), ham (Z, Y). ham (X, Y) bar (X, Y). ham (X, Y) :- foo (X, Y). Suppose the query is ? qux (X, dave). What is/are the answer substitution(s) given by Prolog? What is/are the answer(s) of the query?

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