A mass of people walk through the park.
The people are all eating cafeteria food at the tables in the building.
one can't eat in cafeteria while walking
exists e1 x1 x2 x3 x4.(n_park(x4) & a_topic(x1) & of(x1,x2) & through(e1,x4) & Theme(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_mass(x1))
exists e1 s1 x1 x2 x3 x4 x5.(n_building(x5) & n_table(x4) & n_people(x1) & a_all(s1) & Manner(e1,s1) & at(e1,x4) & in(x4,x5) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_food(x2) & of(x2,x3) & n_cafeteria(x3))