A baby stands on the side of a couch and knocks over a lamp.
A baby is playing on the lamp.
A baby playing is not the same as a baby standing.
exists e1 x1 x2 x3 x4 x5 x6.(n_side(x3) & over(e1,x6) & n_lamp(x6) & on(e1,x2) & subset_of(x5,x2) & n_knock(x5) & subset_of(x3,x2) & of(x3,x4) & n_couch(x4) & Actor(e1,x1) & v_stand(e1) & n_baby(x1))
exists e1 x1 x2.(n_lamp(x2) & on(e1,x2) & Actor(e1,x1) & v_play(e1) & n_baby(x1))