Some motorcyclists make a jump in a dirt bike race.
Motorcyclists stand still on their bikes.
One cannot simultaneously stand still and jump.
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & in(x2,x3) & n_race(x3) & of(x3,x5) & n_bike(x5) & of(x3,x4) & n_dirt(x4) & n_jump(x2) & n_motorcyclist(x1))
exists e1 s1 x1 x2.(a_still(s1) & Manner(e1,s1) & on(e1,x2) & n_bike(x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_stand(e1) & n_motorcyclist(x1))