n1 n2 2 av-j crd 1 n1 n1 7 n1 crd 1 j-jn n2 1 np1 np1 1 np1 crd 1 n1 av-j 1 n2 crd 1 crd np1 1 crd n1 1 n1 j-jn 1 crd j 1 crd av-j 1 av-j n2 1 n2 n1 3 j n1 4 np1 n1 1 n1 j 3