n1 n2 2 av-j av-j 1 n1 n1 7 js n1 1 np1 crd 1 n2 av-j 1 n1 av-j 1 n1 js 1 av-j j 1 crd j 1 j j 1 n2 n1 1 j n1 8 j n2 2 av-j n1 1 n2 j 2 n1 j 7