Construction worker in orange vest and white hard hat with a shovel.
A construction worker is on the job.
A person wearing an orange vest might no be a construction worker who is on the job.
exists s1 s2 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & with(x1,x7) & n_shovel(x7) & in(x1,x3) & n_hat(x5) & a_hard(s2) & Theme(s2,x5) & a_white(s1) & Theme(s1,x5) & n_vest(x4) & of(x4,x6) & n_orange(x6) & subset_of(x5,x3) & subset_of(x4,x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists p1 x1 x2 x3.(n_job(x3) & on(x1,x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))