A group of people are sitting at a table and drinking.
Friends at a bar are having a pitcher of beer.
Not all people having a drink are having a pitcher of beer.
exists e1 x1 x2 x3 x4 x5.(at(e1,x3) & n_drinking(x5) & n_table(x4) & subset_of(x5,x3) & subset_of(x4,x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & of(x3,x4) & n_beer(x4) & n_pitcher(x3) & at(x1,x2) & n_bar(x2) & n_friend(x1))