Two dogs play together while their owners watch.
Two dogs play with each other while their owners watch to make sure no one gets hurt
Just because the owners watch their dogs play together does not necessarily mean they are watching to make sure no one gets hurt.
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_watch(e2) & n_thing(x4) & while(e1,x3) & n_owner(x3) & of(x3,x1) & n_thing(x1) & a_together(s1) & Manner(e1,s1) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))
exists e1 p1 x1 x3 x4 x5.(-exists e3 e2 p2 p3 x6 x7.(Topic(e3,p3) & exists e5 p4.(exists s1.(Theme(s1,x3) & a_sure(s1)) & Topic(e5,p4) & Actor(e5,x3) & v_make(e5)) & Theme(e3,x6) & Actor(e3,x5) & v_watch(e3) & exists e4.(Theme(e4,x7) & v_hurt(e4)) & Topic(e2,p2) & Actor(e2,x7) & v_get(e2) & (x6 = x7) & n_one(x6)) & n_owner(x5) & of(x5,x4) & n_thing(x4) & n_owner(x3) & of(x3,x1) & n_thing(x1) & while(e1,p1) & all x2.(n_other(x2) -> with(e1,x2)) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_2(x1))