A group of workers are entering a construction site.
Workers lock up after they leave.
Entering is the opposite of leaving.
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_enter(e1) & n_site(x3) & of(x3,x4) & n_construction(x4) & of(x1,x2) & n_worker(x2) & n_group(x1))
exists e1 p1 s1 x1.(exists e2.(Actor(e2,x1) & v_leave(e2)) & n_thing(x1) & after(e1,p1) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lock(e1) & n_worker(x1))