auction public under selling 8 List Picture As a command %3 n0 auction n2 combinatorial-auction n0->n2 n3 double-auction n0->n3 n4 dutch-auction n0->n4 n5 english-auction n0->n5 n6 reverse-auction n0->n6 n7 sealed-bid-auction n0->n7 n8 vickrey-auction n0->n8 n1 selling n1->n0