Bikers race through a forest.
The cops pulled over the bikers cause they were going to fast
Bikers race through a forest implies mountain bikes. Cops would not have pulled over bikers, usually.
exists x1 x2 x3.(a_topic(x1) & through(x1,x3) & n_forest(x3) & n_race(x1) & of(x1,x2) & n_biker(x2))
exists e4 e2 e1 e3 s1 x1 x2 x3 x4.(n_thing(x3) & n_biker(x3) & n_cop(x1) & a_fast(s1) & Manner(e4,s1) & Topic(e4,e3) & Actor(e4,x1) & v_go(e4) & Actor(e3,x1) & v_to(e3) & over(e1,x3) & Theme(e2,x3) & Actor(e2,x4) & v_cause(e2) & (x3 = x4) & Actor(e1,x2) & v_pull(e1) & (x1 = x2))