people seated in individual chairs and waiting.
People are sitting in the chair and eating food.
If people are sitting in a single chairs, they cannot be sitting in a single chair.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x3) & n_wait(x5) & n_chair(x4) & a_individual(s1) & Theme(s1,x4) & subset_of(x5,x3) & subset_of(x4,x3) & Theme(e1,x2) & v_seat(e1) & (x1 = x2) & n_people(x1))
exists e1 s1 x1 x2 x3 x4.(n_food(x4) & a_eating(s1) & Theme(s1,x4) & n_chair(x3) & subset_of(x4,x2) & subset_of(x3,x2) & in(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))