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OCR: Practice Prolog ??- p(f (a), g(X) )=p(f(a),f(a)). no ??- p(a, X, h(g(2)) )=p(Z.h(),h(Y)). x = h(g(a)) 2 = a Y = g(a) -> yes 77- Return to Tutor: Ctrl-I Figure 2. Experimenting with APT's built-in interpreter