Construction worker in a hard hat and yellow neon vest, working on stairs.
The construction workers are sweating while working on the stairs.
It cannot be inferred that there are more than one worker or that they are sweating.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(a_topic(s1) & subset_of(x4,s1) & on(e1,x7) & n_stair(x7) & Actor(e1,x6) & v_work(e1) & (x4 = x6) & n_vest(x4) & of(x4,x5) & n_neon(x5) & a_yellow(s3) & Theme(s3,x4) & subset_of(x1,s1) & in(x1,x3) & n_hat(x3) & a_hard(s2) & Theme(s2,x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e2 e1 x1 x2 x3.(n_stair(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & while(e1,e2) & on(e2,x3) & Actor(e2,x1) & v_work(e2) & Actor(e1,x1) & v_sweat(e1))