A man crouching and holding a camera.
A tall person crouching
The man could be any hight, not necessarily tall.
exists e1 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & n_camera(x4) & n_thing(x3) & subset_of(x1,s1) & n_crouching(x1) & of(x1,x2) & n_man(x2))
exists e1 s1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_crouch(e1) & (x1 = x2) & n_person(x1) & a_tall(s1) & Theme(s1,x1))