A collie is running through an obstacle course
A dog is running through an obstacle course
A collie is a breed of dog.
exists e1 x1 x2 x3.(through(e1,x2) & n_course(x2) & of(x2,x3) & n_obstacle(x3) & Actor(e1,x1) & v_run(e1) & n_collie(x1))
exists e1 x1 x2 x3.(through(e1,x2) & n_course(x2) & of(x2,x3) & n_obstacle(x3) & Actor(e1,x1) & v_run(e1) & n_dog(x1))