Three people are smiling while having food and drinks.
Three friends are laughing and telling jokes while eating lunch at work.
Three friends are laughing and telling jokes doesn't mean they eating  eating lunch at work
exists e1 e2 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & subset_of(x4,x2) & n_drink(x4) & subset_of(x3,x2) & n_food(x3) & Actor(e1,x1) & v_smile(e1) & n_people(x1) & card_eq_3(x1))
exists e1 e3 e2 x1 x2 x3 x4 x5.(while(e2,e3) & at(e3,x5) & n_work(x5) & Theme(e3,x4) & Actor(e3,x2) & v_eat(e3) & n_lunch(x4) & Theme(e2,x3) & Actor(e2,x2) & v_tell(e2) & n_joke(x3) & n_friend(x2) & card_eq_3(x2) & Actor(e1,x1) & v_laugh(e1) & n_friend(x1) & card_eq_3(x1))