A baby is deeply asleep at the person's back.
Baby asleeping with mother.
Just because baby is deeply asleep at the person's back doesn't mean with mother.
exists s1 x1 x2 x3.(n_back(x3) & of(x3,x2) & n_person(x2) & at(s1,x3) & r_deeply(s1) & Theme(s1,x1) & a_asleep(s1) & n_baby(x1))
exists e1 x1 x2.(ne_nam_baby(x1) & with(e1,x2) & n_mother(x2) & Actor(e1,x1) & v_asleep(e1))