The boat has two large masts.
The masts of this boat are painted black.
Not all masts are painted, not all are painted black.
exists e1 s1 x1 x2.(n_boat(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_mast(x2) & a_large(s1) & Theme(s1,x2) & card_eq_2(x2))
exists e1 p1 x1 x2.(n_boat(x2) & n_mast(x1) & exists s1.(Theme(s1,x1) & a_black(s1)) & Recipient(e1,p1) & Topic(e1,x1) & v_paint(e1) & of(x1,x2))