Three people are smiling while having food and drinks.
Three upset people are throwing up their food at a park.
One cannot be smiling and upset at the same time. One would not be smiling while throwing up.
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 s1 s2 x1 x2 x3.(at(e1,x3) & n_park(x3) & a_up(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_food(x2) & of(x2,x1) & n_thing(x1) & n_people(x1) & a_upset(s1) & Theme(s1,x1) & card_eq_3(x1))