One bear has fur that sticks up on its back resembling a mohawk.
The bear right before he attacked his trainer
It would be difficult to infer that the bear  was in a moment "before he attacked his trainer". A bear's hair can stick up without feeling aggression. There is also no mention of the bear's gender, as implied by the use of "he and him",  nor of it being owned by anyone, even a trainer.
exists e2 e3 e1 s1 x1 x2 x3 x4 x5.(Theme(e3,x2) & Actor(e3,x1) & v_have(e3) & for(e1,e2) & Theme(e2,x5) & Actor(e2,x3) & v_resemble(e2) & n_mohawk(x5) & on(e1,x4) & n_back(x4) & of(x4,x1) & n_thing(x1) & a_up(s1) & Manner(e1,s1) & Actor(e1,x3) & v_stick(e1) & (x2 = x3) & n_fur(x2) & n_bear(x1) & card_eq_1(x1))
exists e1 x1 x2 x3.(n_trainer(x3) & of(x3,x1) & n_male(x1) & n_male(x2) & n_right(x1) & of(x1,x2) & n_bear(x2) & Theme(e1,x3) & Actor(e1,x1) & v_attack(e1) & before(x1,x2))