People sit in a lit alcove off a dark street.
People standing on the roof are dancing.
people sit and people stand on an alcove and on a roof
exists e1 s1 x1 x2 x3 x4.(in(e1,x2) & off(x2,x4) & n_street(x4) & a_dark(s1) & Theme(s1,x4) & n_alcove(x2) & of(x2,x3) & n_lit(x3) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists e2 e1 x1 x2 x3.(n_roof(x3) & Actor(e2,x1) & v_dance(e2) & on(e1,x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1))