A person in a biking suit rides a bike down a hill.
The bike is on the hill.
A person going down a hill on a bike.
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x4) & Actor(e1,x1) & v_ride(e1) & down(x4,x5) & n_hill(x5) & n_bike(x4) & in(x1,x2) & n_suit(x2) & of(x2,x3) & n_biking(x3) & n_person(x1))
exists p1 x1 x2.(n_hill(x2) & n_bike(x1) & on(x1,x2))