Some people in a park with a dog and folding chairs.
A dog chases after its own tail.
People and dog are different.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & with(x2,x3) & subset_of(x5,x3) & n_chair(x5) & a_folding(s1) & Theme(s1,x5) & subset_of(x4,x3) & n_dog(x4) & n_park(x2) & n_people(x1))
exists e1 s1 x1 x2.(after(e1,x2) & n_tail(x2) & a_own(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_chase(e1) & n_dog(x1))