YES TRS: f(g(x)) -> g(f(f(x))) f(h(x)) -> h(g(x)) f'(s(x),y,y) -> f'(y,x,s(x)) max/plus interpretations on N: f_A(x1) = max{0, x1} f#_A(x1) = max{0, -1 + x1} g_A(x1) = max{3, 4 + x1} g#_A(x1) = max{1, -4} h_A(x1) = max{4, -1} h#_A(x1) = max{2, -3} f'_A(x1,x2,x3) = max{0, 0, 1, 1} f'#_A(x1,x2,x3) = max{7, 5 + x1, 6 + x2, 2 + x3} s_A(x1) = max{3, 3 + x1} s#_A(x1) = max{0, 1} precedence: f = f' > h = s > g