Construction workers are working under a light at night.
The construction workers are at the movie theater.
they have to either be working under a light or at the movie theater, not both.
exists e1 x1 x2 x3 x4.(at(e1,x4) & n_night(x4) & under(e1,x3) & n_light(x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists p1 x1 x2 x3 x4.(n_theater(x3) & of(x3,x4) & n_movie(x4) & n_worker(x1) & of(x1,x2) & n_construction(x2) & at(x1,x3))