Two city workers working on something outside.
City employees work together outside.
Two city workers working implies they work together.
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & Theme(s1,x4) & a_outside(s1) & (x3 = x4) & n_thing(x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_city(x2) & card_eq_2(x1))
exists e1 s1 s2 x1 x2.(a_outside(s2) & Manner(e1,s2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1) & n_employee(x1) & (x1 = x2) & ne_geo_city(x2))