A man in yellow and a man in green boating down a river on an overcast day.
There are two men in a boat.
A man in yellow and a man in green means two men and a boat is required for boating.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(a_topic(s1) & subset_of(x3,s1) & in(x3,x4) & on(e1,x7) & n_day(x7) & a_overcast(s3) & Theme(s3,x7) & a_down(s2) & Manner(e1,s2) & Theme(e1,x6) & Actor(e1,x5) & v_boat(e1) & n_river(x6) & (x4 = x5) & n_green(x4) & n_man(x3) & subset_of(x1,s1) & in(x1,x2) & n_yellow(x2) & n_man(x1))
exists p1 x1 x2.(in(p1,x2) & n_boat(x2) & exists x3.((x1 = x3) & n_man(x3) & card_eq_2(x3)))