A birthday party is going on with lots of people celebrating.
The people are going to sleep.
People aren't celebrating if they are going to sleep.
exists e2 e1 s1 x1 x2 x3 x4 x5.(with(e1,x3) & of(x3,x4) & Actor(e2,x5) & v_celebrate(e2) & (x4 = x5) & n_people(x4) & n_lot(x3) & a_on(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1) & n_party(x1) & of(x1,x2) & n_birthday(x2))
exists e1 p1 x1.(n_people(x1) & Topic(e1,p1) & Actor(e1,x1) & v_go(e1) & exists e2.(Actor(e2,x1) & v_sleep(e2)))