Bikers race through a forest.
The bikers drove through the dense forest.
A forest can be dense or cleared.
exists x1 x2 x3.(a_topic(x1) & through(x1,x3) & n_forest(x3) & n_race(x1) & of(x1,x2) & n_biker(x2))
exists e1 x1 x2 x3.(n_forest(x2) & of(x2,x3) & n_dense(x3) & n_biker(x1) & through(e1,x2) & Actor(e1,x1) & v_drive(e1))