These are three young black men who appear to be very similar in age and height and facial features.
The guys are swimming in the sea.
Hard to see similar features while swimming in the sea.
exists p1 x1.(n_thing(x1) & exists e1 p2 s1 s2 s3 x2 x3 x4 x5.((x1 = x2) & subset_of(x5,x2) & n_feature(x5) & a_facial(s3) & Theme(s3,x5) & subset_of(x3,x2) & Topic(e1,p2) & Actor(e1,x4) & v_appear(e1) & exists s4 x6 x7 x8.(r_very(s4) & in(s4,x6) & n_height(x8) & n_age(x7) & subset_of(x8,x6) & subset_of(x7,x6) & Theme(s4,x4) & a_similar(s4)) & (x3 = x4) & n_man(x3) & a_black(s2) & Theme(s2,x3) & a_young(s1) & Theme(s1,x3) & card_eq_3(x3)))
exists e1 x1 x2.(n_sea(x2) & n_guy(x1) & in(e1,x2) & Actor(e1,x1) & v_swim(e1))