Seven sailors dressed in blue on a boat.
There are seven sailors on the boat.
There is no indication that there are not other sailors on the boat.
exists e1 x1 x2 x3.(on(e1,x3) & n_boat(x3) & in(e1,x2) & n_blue(x2) & Theme(e1,x1) & v_dress(e1) & n_sailor(x1) & card_eq_7(x1))
exists p1 x1 x3.(n_boat(x3) & exists x2.((x1 = x2) & on(x2,x3) & n_sailor(x2) & card_eq_7(x2)))