Cowboy riding a bucking horse, while two guys watch from the gate.
a girl riding a mechanical bull at the bar
A cowboy on a live bucking horse outside is not the same as a girl, who is a different gender as well as not a professional cowboy, inside a bar riding a non living mechanical bull.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(n_gate(x6) & ne_nam_cowboy(s1) & a_topic(s1) & from(e2,x6) & Theme(e2,x5) & Actor(e2,e1) & v_watch(e2) & (s1 = x5) & while(e1,x4) & n_guy(x4) & card_eq_2(x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2) & of(x2,x3) & n_bucking(x3) & n_thing(x1))
exists e1 s1 x1 x2 x3 x4.(n_bar(x4) & a_topic(x1) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bull(x3) & a_mechanical(s1) & Theme(s1,x3) & (x1 = x2) & n_girl(x1))