Three yellow- vested workers are sitting down on folding chairs in a city.
Four workers are sitting on the sidewalk.
It can either be three workers or four workers
exists e1 e2 s1 s2 s3 x1 x2 x3.(on(e1,x2) & in(x2,x3) & n_city(x3) & n_chair(x2) & Actor(e2,x2) & v_fold(e2) & a_down(s3) & Manner(e1,s3) & Actor(e1,x1) & v_sit(e1) & n_worker(x1) & a_vested(s2) & Theme(s2,x1) & a_yellow-(s1) & Theme(s1,x1) & card_eq_3(x1))
exists e1 x1 x2.(n_sidewalk(x2) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_worker(x1) & card_eq_4(x1))