A motorcyclist gets moving.
The motorcyclist is in traffic.
A motorcyclist moving does not imply to be in traffic.
exists e1 p1 x1.(exists e2.(Actor(e2,x1) & v_move(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_motorcyclist(x1))
exists p1 x1.(n_motorcyclist(x1) & exists x2.(in(x1,x2) & n_traffic(x2)))