People sitting and eating inside a diner.
People are consuming food.
Eating is  a synonym of consuming.
exists e2 e1 x1 x2 x3.(inside(e2,x3) & n_diner(x3) & Actor(e2,x2) & v_eat(e2) & n_people(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_consume(e1) & n_food(x2) & n_people(x1))