A woman is dressed in a costume with a huge feather in her hat.
She's ready for the masquerade ball.
Not all people dressed in costume are going to a masquerade ball.
exists e1 s1 x1 x2 x3 x4.(in(e1,x4) & n_hat(x4) & of(x4,x1) & n_female(x1) & with(e1,x3) & n_feather(x3) & a_huge(s1) & Theme(s1,x3) & in(e1,x2) & n_costume(x2) & Theme(e1,x1) & v_dress(e1) & n_woman(x1))
exists s1 x1 x2 x3.(n_ball(x2) & of(x2,x3) & n_masquerade(x3) & n_female(x1) & for(s1,x2) & Theme(s1,x1) & a_ready(s1))