A girl is catching a baseball before an opponent touches base.
A girl is selling ice cream.
A girl cannot be catching a baseball and selling ice cream at the same time.
exists e1 p1 x1 x2.(exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_touch(e2) & n_base(x4) & n_opponent(x3)) & before(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_baseball(x2) & n_girl(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_sell(e1) & n_cream(x2) & of(x2,x3) & n_ice(x3) & n_girl(x1))