A crew in orange vests and hard hats stands near the top of an escalator.
Construction workers are fixing an escalator.
A crew in orange vests and hard hats doesn't mean they are construction workers and just because they are standing near an escalator doesn't mean they are fixing it.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(n_top(x6) & near(e1,x6) & of(x6,x7) & n_escalator(x7) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & n_hat(x5) & a_hard(s1) & Theme(s1,x5) & n_vest(x4) & subset_of(x5,x2) & subset_of(x4,x2) & of(x2,x3) & n_orange(x3) & n_crew(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_fix(e1) & n_escalator(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))