A man is on a bucking bull at the Rodeo.
A male is on a robotic device.
a man is a male
exists p1 x1 x4.(n_rodeo(x4) & exists x2 x3.(on(x1,x2) & at(x2,x4) & n_bull(x2) & of(x2,x3) & n_bucking(x3)) & n_man(x1))
exists p1 x1.(exists s1 x2.(on(x1,x2) & n_device(x2) & a_robotic(s1) & Theme(s1,x2)) & n_male(x1))