The bears seem to have a friendly or familiar relationship.
The bears did not attack each other.
Just because a bears seem friendly doesn't mean that they did not attack each other before
exists e1 p1 x1.(n_bear(x1) & Topic(e1,p1) & Actor(e1,x1) & v_seem(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & (exists s1.(n_relationship(x2) & a_friendly(s1) & Theme(s1,x2)) | exists s2.(n_relationship(x2) & a_familiar(s2) & Theme(s2,x2)))))
exists x1.(n_bear(x1) & -all x2.(n_other(x2) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_attack(e1))))