Two construction workers doing their job.
Construction workers are doing well at their job.
Workers doing their job don't have to be doing well at their job.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & n_job(x3) & of(x3,x1) & n_thing(x1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_job(x3) & of(x3,x1) & n_thing(x1) & a_well(s1) & Manner(e1,s1) & Actor(e1,x1) & v_do(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))