People are eating a table.
People are waiting to eat at the diner.
People are either waiting or eating.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_table(x2) & n_people(x1))
exists e1 p1 x1 x2.(n_diner(x2) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(at(e2,x2) & Actor(e2,x1) & v_eat(e2)) & n_people(x1))