A man in a yellow coat and neon green safety vest pushes janitorial equipment down a sidewalk.
A man works for the city as a janitor.
A man who pushes janitorial equipment does not necessarily work for the city and is not necessarily a janitor.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e1,x7) & Actor(e1,x1) & v_push(e1) & down(x7,x8) & n_sidewalk(x8) & n_equipment(x7) & a_janitorial(s3) & Theme(s3,x7) & in(x1,x2) & n_vest(x4) & of(x4,x6) & n_safety(x6) & a_green(s2) & Theme(s2,x4) & of(x4,x5) & n_neon(x5) & n_coat(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_yellow(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(n_city(x2) & for(e1,x2) & as(x2,x3) & n_janitor(x3) & Actor(e1,x1) & v_work(e1) & n_man(x1))