A small boy is sitting on a step while a grill smokes in the background.
A old man stands in a room.
boy and a old man are two different age group
exists e1 p1 s1 x1 x2 x4.(n_background(x4) & exists e2 x3.(in(e2,x4) & Actor(e2,x3) & v_smoke(e2) & n_grill(x3)) & while(e1,p1) & on(e1,x2) & n_step(x2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(in(e1,x2) & n_room(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))