Several people are sitting inside a dark art gallery.
People are inside a dark gallery.
It is a dark art gallery, not a dark gallery.
exists e1 s1 s2 x1 x2 x3.(inside(e1,x2) & n_gallery(x2) & of(x2,x3) & n_art(x3) & a_dark(s2) & Theme(s2,x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists p1 x1.(exists s1 x2.(inside(x1,x2) & n_gallery(x2) & a_dark(s1) & Theme(s1,x2)) & n_people(x1))