Two people eating at a restaurant.
Two people are on a date.
Two people can eat together without being on a date.
exists e1 x1 x2 x3.(a_topic(x1) & at(e1,x3) & n_restaurant(x3) & Actor(e1,x2) & v_eat(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists p1 x1.(exists x2.(on(x1,x2) & n_date(x2)) & n_people(x1) & card_eq_2(x1))