Two workers wearing black and yellow jackets and white hard hats.
The workers do construction.
Just because the workers have on black and yellow jackets and white hard hats doesn't mean they do construction.
exists e1 s1 s2 s3 s4 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_hat(x4) & a_hard(s4) & Theme(s4,x4) & a_white(s3) & Theme(s3,x4) & n_jacket(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_yellow(s2) & Theme(s2,x2) & a_black(s1) & Theme(s1,x2) & n_worker(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_worker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_construction(x2))