Lots of people on a boat.
There are equal men and women
Lots of people does not imply equal numbers of men and women.
exists x1 x2 x3.(a_topic(x1) & of(x1,x2) & on(x2,x3) & n_boat(x3) & n_people(x2) & n_lot(x1))
exists p1 x1 s1 x2 x3 x4.((x1 = x2) & n_woman(x4) & n_man(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_equal(s1) & Theme(s1,x2))