Five boats out by the marina area.
Two of the boats in the marina area are yachts.
just there are five boats doesn't mean two of them are yachts
exists x1 x2 x3 x4.(n_area(x3) & of(x3,x4) & n_marina(x4) & a_topic(x1) & by(x2,x3) & out(x1,x2) & n_thing(x2) & n_boat(x1) & card_eq_5(x1))
exists p1 x1 x2 x3 x4.(n_area(x3) & of(x3,x4) & n_marina(x4) & n_boat(x2) & exists x5.((x1 = x5) & n_yacht(x5)) & of(x1,x2) & in(x2,x3) & n_thing(x1) & card_eq_2(x1))