Two people wear life jackets in a rowboat.
Two boaters exercise caution and choose to wear life jackets even in the shallow water.
The two people are not necessarily boaters exercising caution and they are not necessarily in shallow water.
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 e2 e1 p1 s1 x1 x2 x3 x6.(n_water(x6) & a_shallow(s1) & Theme(s1,x6) & Topic(e2,p1) & Actor(e2,x3) & v_choose(e2) & exists e3 x4 x5.(r_even(e3) & in(e3,x6) & Theme(e3,x4) & Actor(e3,x3) & v_wear(e3) & n_jacket(x4) & of(x4,x5) & n_life(x5)) & n_boater(x3) & card_eq_2(x3) & Theme(e1,x2) & Actor(e1,x1) & v_exercise(e1) & n_caution(x2) & n_boater(x1) & card_eq_2(x1))