Two dogs bite each other while playing around.
the dog is resting beneath a tree.
The dog is singular; two dogs is plural.
exists x1.(all x2.(n_other(x2) -> exists e1 e2 s1.(while(e1,e2) & a_around(s1) & Manner(e2,s1) & Actor(e2,x1) & v_play(e2) & Theme(e1,x2) & Actor(e1,x1) & v_bite(e1))) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_dog(x1) & beneath(e1,x2) & n_tree(x2) & Actor(e1,x1) & v_rest(e1))