A baby was just born and the nurses are doing their jobs.
The baby sits alone in the nursery.
If a nurse is in the room, a baby is not alone.
exists e1 e2 s1 x1 x2 x3.(n_job(x3) & of(x3,x2) & n_thing(x2) & n_nurse(x2) & Theme(e2,x3) & Actor(e2,x2) & v_do(e2) & a_just(s1) & Manner(e1,s1) & Theme(e1,x1) & v_bear(e1) & n_baby(x1))
exists e1 s1 x1 x2.(n_nursery(x2) & n_baby(x1) & in(e1,x2) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1))