function oracle = mk_vstruct_bnet()% MK_VSTRUCT_BNET Make a simple V-structured 3-node noisy-AND Bayes net% oracle = mk_vstruct_bnet()N = 3;dag = zeros(N);A = 1; B = 2; C = 3;dag(A,C)=1;dag(B,C)=1;ns = 2*ones(1,N);oracle = mk_bnet(dag, ns);oracle.CPD{1} = tabular_CPD(oracle, 1, [0.5 0.5]);oracle.CPD{2} = tabular_CPD(oracle, 2, [0.5 0.5]);pnoise = 0.1; % degree of noiseoracle.CPD{3} = boolean_CPD(oracle, 3, 'named', 'all', pnoise);