Families are playing at the park on tire swings.
Children are running around playing together.
Just because there are families playing at the park on tire swings, doesn't necessarily have to mean that children are running or playing together.
exists e1 x1 x2 x3 x4.(n_park(x2) & at(e1,x2) & on(x2,x3) & n_swing(x3) & of(x3,x4) & n_tire(x4) & Actor(e1,x1) & v_play(e1) & n_family(x1))
exists e2 e1 s1 x1.(around(e1,e2) & a_together(s1) & Manner(e2,s1) & Actor(e2,x1) & v_play(e2) & Actor(e1,x1) & v_run(e1) & n_child(x1))