A work crew wearing orange vasts is working at night under some lights.
People are outside.
A work crew is made up of people, and the crew is working at night under some lights, so a work crew must be outside.
exists e2 e1 x1 x2 x3 x4 x5 x6 x7.(under(e2,x7) & n_light(x7) & at(e2,x6) & n_night(x6) & Actor(e2,x1) & v_work(e2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_vast(x4) & of(x4,x5) & n_orange(x5) & (x1 = x3) & n_crew(x1) & of(x1,x2) & n_work(x2))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_people(x1))