The table below shows the values of predicates Q,R, and S for every possible input. The domain for the input to each function is {1,2,3,4}. Ex: Q(3) is false because the entry in row 3 , column Q is F. Determine the truth value of each expression. (1) xy(Q(x)((x=y)Q(y))) (2) xy(S(x)((x=y)S(y))) (3) xy(R(x)((x=y)R(y)))