An intrepid cowgirl rides a mustang at the rodeo.
The cowgirl is riding a bull.
The cowgirl cannot be riding a mustang and a bull simultaneously.
exists e1 s1 x1 x2 x3.(n_rodeo(x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_mustang(x2) & n_cowgirl(x1) & a_intrepid(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_cowgirl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bull(x2))