two dogs running around
Two dogs are playing fetch.
Sentence 1 doesn't mention why the dogs were running around, even though when playing fetch, dogs do a lot of running.
exists e1 p1 x1 x2.(a_topic(x1) & exists s1.(Theme(s1,x2) & a_around(s1)) & Topic(e1,p1) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))
exists e1 s1 x1.(a_fetch(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_2(x1))