A man is on a bucking bull at the Rodeo.
The man tries the mechnical bull to impress his girlfriend.
Not all bulls are mechanical (i.e. " mechnical ")
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 e1 p1 s1 x1 x2 x3.(n_girlfriend(x3) & of(x3,x2) & n_male(x2) & n_bull(x2) & a_mechnical(s1) & Theme(s1,x2) & n_man(x1) & Topic(e1,p1) & exists e2.(Theme(e2,x3) & Actor(e2,x1) & v_impress(e2)) & Theme(e1,x2) & Actor(e1,x1) & v_try(e1))