Two people wear life jackets in a rowboat.
Three people lazily lay about their boat with no regard for safety.
There can either be two people or three people.  Wearing life jackets does not indicate no regard for safety.
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_rowboat(x4) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_jacket(x2) & of(x2,x3) & n_life(x3) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(a_lazily(s1) & Manner(e1,s1) & -exists x3 x4.(about(e1,x2) & with(x2,x3) & for(x3,x4) & n_safety(x4) & n_regard(x3)) & n_boat(x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_lay(e1) & n_people(x1) & card_eq_3(x1))