Little dog running through an obstacle course.
A cat is running through an obstacle course.
Their is mention of both dog and cat which are different animals.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & through(e1,x3) & n_course(x3) & of(x3,x4) & n_obstacle(x4) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & a_little(s1) & Theme(s1,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_cat(x1))