A group of people stand outside a bar at night.
Some people are drinking beers.
A group of people stand outside a bar at night does not necessary that they are drinking beers.
exists e1 x1 x2 x3 x4.(at(e1,x4) & n_night(x4) & outside(e1,x3) & n_bar(x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_beer(x2) & n_people(x1))