The horse and rider are both on the ground at the rodeo.
The rodeo has seen people fail.
Being on the ground does not indicate a fail.
exists p1 s1 x1 x2 x3 x4 x5.(n_rodeo(x4) & n_ground(x5) & n_rider(x3) & n_horse(x2) & subset_of(x3,x1) & subset_of(x2,x1) & at(p1,x4) & a_both(s1) & Manner(p1,s1) & on(x1,x5))
exists e1 e2 x1 x2 x3.(n_rodeo(x1) & Theme(e2,x2) & Actor(e2,x1) & v_see(e2) & Actor(e1,x3) & v_fail(e1) & (x2 = x3) & n_people(x2))