np1 crd 1 n1 ord 3 crd j 1 n2 n1 2 n1 j 4 ord crd 1 n1 n2 1 n1 j-jn 1 n1 n1 6 j n1 3 j n2 3 n2 crd 1 ord j-jn 1 j j 2 j-jn n1 2 n2 j 2 ord n1 2 crd n2 3 ng1 n1 1 n1 ng1 1 j crd 1 n2 ord 1