A young boy in pajamas sleeps on a couch.
The boy is sleep on the couch
A boy sleeps on a couch does not imply the boys is sleeping on the couch.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_couch(x3) & Actor(e1,x1) & v_sleep(e1) & in(x1,x2) & n_pajamas(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1 x3.(n_couch(x3) & n_boy(x1) & exists x2.((x1 = x2) & on(x2,x3) & n_sleep(x2)))