Two people in orange life jackets.
The duo of boaters are wearing orange life jackets.
Two people can be considered a duo.
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & n_jacket(x2) & of(x2,x4) & n_life(x4) & of(x2,x3) & n_orange(x3) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4.(n_duo(x1) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_jacket(x3) & of(x3,x4) & n_life(x4) & a_orange(s1) & Theme(s1,x3) & of(x1,x2) & n_boater(x2))