A baby and a young boy playing.
two people are playing
The two people playing is baby and a young boy.
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.(Actor(e1,x1) & v_play(e1) & n_people(x1) & card_eq_2(x1))