People are walking around a park area.
The people are playing on the swingset.
The people are either walking around, or they are playing.
exists e1 x1 x2 x3.(around(e1,x2) & n_area(x2) & of(x2,x3) & n_park(x3) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 x1 x2.(n_swingset(x2) & n_people(x1) & on(e1,x2) & Actor(e1,x1) & v_play(e1))