n1 n2 2 n1 n1 7 js n1 1 j ng2 1 j n1 7 n1 av-j 1 av-j np1 1 ng2 n2 1 n1 js 1 j np1 1 n2 n1 2 n2 j 1 np1 j 1 np1 n1 1 n1 j 7