A girl wearing snowshoes holds a bird.
A girl in rollerskates holds a squirrel.
you can not be wearing snowshoes or in rollerskates at the same time
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_hold(e2) & n_bird(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_snowsho(x3) & (x1 = x2) & n_girl(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_squirrel(x3) & in(x1,x2) & n_rollerskate(x2) & n_girl(x1))