A woman is hold a child while he reads.
A child is reading.
"child is reading" is a rephrasing of "while he reads".
exists e1 p1 x1 x2.(exists e2.(Actor(e2,x1) & v_read(e2)) & n_male(x1) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_child(x2) & n_woman(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_thing(x2) & n_child(x1))