A baby and a young boy playing.
The boy and baby are related.
Just because they kids are playing together doesn't mean they are related.
exists s1 s2 x1 x2 x3.(a_topic(s1) & subset_of(x2,s1) & n_playing(x2) & of(x2,x3) & n_boy(x3) & a_young(s2) & Theme(s2,x2) & subset_of(x1,s1) & n_baby(x1))
exists e1 x1 x2 x3.(n_baby(x3) & n_boy(x2) & subset_of(x3,x1) & subset_of(x2,x1) & Theme(e1,x1) & v_relate(e1))