children are sleeping as someone reads a song book.
There are children asleep.
The children are asleep, the person reading doesn't interrupt the sleeping
exists e1 p1 x1.(exists e2 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x2) & v_read(e2) & n_book(x3) & of(x3,x4) & n_song(x4) & n_person(x2)) & as(e1,p1) & Actor(e1,x1) & v_sleep(e1) & n_child(x1))
exists p1 x1 s1 x2 x3.((x1 = x2) & Theme(s1,x3) & a_asleep(s1) & (x2 = x3) & n_child(x2))