Three construction workers digging a hole.
They are making repairs.
Digging a hole does not mean they're making repairs.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_dig(e1) & n_hole(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_3(x1))
exists e1 x1 x2.(n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_repair(x2))