A cowboy falling off a bull at a rodeo.
A cowboy fells off the bull for the first time at a rodeo.
It cannot be inferred that the cowboy actually falls off. There is no way to know that this is the cowboy's first time to fall.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x4) & n_rodeo(x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_fall(e1) & n_bull(x3) & (x1 = x2) & n_cowboy(x1))
exists e1 s1 s2 x1 x2 x3 x4.(n_time(x3) & a_first(s2) & Theme(s2,x3) & n_bull(x2) & for(e1,x3) & at(x3,x4) & n_rodeo(x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_fell(e1) & n_cowboy(x1))