A man wearing blue jeans and a young boy wearing a brown shirt are playing in the backyard.
The father and son are having a catch.
The man and the boy are not necessarily father and son.
exists e1 e3 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(n_backyard(x8) & in(e3,x8) & Actor(e3,x1) & v_play(e3) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & subset_of(x5,x3) & Theme(e1,x7) & Actor(e1,x6) & v_wear(e1) & n_shirt(x7) & a_brown(s3) & Theme(s3,x7) & (x5 = x6) & n_boy(x5) & a_young(s2) & Theme(s2,x5) & subset_of(x4,x3) & n_jeans(x4) & a_blue(s1) & Theme(s1,x4) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_son(x3) & n_father(x2) & subset_of(x3,x1) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x1) & v_have(e1) & n_catch(x4))