Young boy brushing a baby's hair.
The baby has not been born yet
If a baby has not been born, no one can be brushing the baby's hair.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x2) & v_brush(e1) & n_hair(x4) & of(x4,x3) & n_baby(x3) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists x1.(n_baby(x1) & -exists e1 s1.(a_yet(s1) & Manner(e1,s1) & Theme(e1,x1) & v_bear(e1)))