A group of seven adults having a meal together.
The man drank the beer.
Man is singular, group is plural.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & a_together(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_have(e1) & n_meal(x4) & (x2 = x3) & n_adult(x2) & card_eq_7(x2) & n_group(x1))
exists e1 x1 x2.(n_beer(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1))