If the animal jumps out of the vehicle, or the truck is in an accident, the animal could be injured. 
An animal is always safe no matter what happens to a car
The animal cannot be both injured from an accident and safe no matter what happens to a car.
exists x1 x2 x3.(n_animal(x1) & n_animal(x1) & n_truck(x3) & n_vehicle(x2) & ((exists e1.(r_out(e1) & of(e1,x2) & Actor(e1,x1) & v_jump(e1)) | exists p1 x4.(in(x3,x4) & n_accident(x4))) -> exists e2 p2.(exists e3.(Theme(e3,x1) & v_injure(e3)) & Topic(e2,p2) & Actor(e2,x1) & v_could(e2))))
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & to(e1,x4) & n_car(x4) & Actor(e1,x3) & v_happen(e1) & (x1 = x3) & -exists x5.(n_matter(x5) & for(s1,x5)) & a_always(s2) & Manner(s1,s2) & Theme(s1,x2) & a_safe(s1) & (x1 = x2) & n_animal(x1))