A man is riding upside down on the side of a horse at a rodeo.
A rodeo clown is being chased by a bull at a rodeo.
Riding is on top and being chased means running away. A bull and horse are not the same animal.
exists e1 p1 x1 x2 x3 x4.(n_side(x2) & at(e1,x4) & n_rodeo(x4) & on(e1,x2) & of(x2,x3) & n_horse(x3) & exists s1.(r_upside(s1) & Theme(s1,x1) & a_down(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_ride(e1) & n_man(x1))
exists e1 x1 x2 x3 x4.(Actor(e1,x3) & at(x3,x4) & n_rodeo(x4) & n_bull(x3) & Theme(e1,x1) & v_chase(e1) & n_clown(x1) & of(x1,x2) & n_rodeo(x2))