A yellow construction machine is digging.
A digger is digging a hole.
The digger could be digging other things besides a hole.
exists e1 s1 x1 x2.(Actor(e1,x1) & v_dig(e1) & n_machine(x1) & of(x1,x2) & n_construction(x2) & a_yellow(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_dig(e1) & n_hole(x2) & n_digger(x1))