A woman is hold a child while he reads.
The woman is helping the child learn to read.
You can hold a child while he reads without helping the child learn to read.
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 e2 p1 x1 x2 x3.(n_child(x3) & n_woman(x1) & Topic(e2,p1) & Actor(e2,x1) & v_learn(e2) & exists e3.(Actor(e3,x1) & v_read(e3)) & Theme(e1,x3) & Actor(e1,x2) & v_help(e1) & (x1 = x2))