Child holding a bamboo object.
Child holding something made of bamboo.
A bamboo object by definition is something made of bamboo.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_object(x3) & of(x3,x4) & n_bamboo(x4) & (x1 = x2) & n_child(x1))
exists e1 e2 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_hold(e2) & of(e1,x5) & n_bamboo(x5) & Theme(e1,x4) & v_make(e1) & (x3 = x4) & n_thing(x3) & (x1 = x2) & n_child(x1))