a bmx rider launches off a quarterpipe.
The bike rider is riding in the park.
Quarterpipe is different than park.
exists e1 s1 x1 x2 x3.(a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_launch(e1) & n_quarterpipe(x3) & n_rider(x1) & of(x1,x2) & n_bmx(x2))
exists e1 x1 x2 x3.(n_park(x3) & n_rider(x1) & of(x1,x2) & n_bike(x2) & in(e1,x3) & Actor(e1,x1) & v_ride(e1))