Two girls on red bikes ride by an empty blue dumpster in the street.
boy chases puppy
The girls riding by has nothing to do with the boy chasing his puppy.
exists e1 s1 s2 s3 x1 x2 x3 x4.(n_street(x4) & by(e1,x3) & in(x3,x4) & n_dumpster(x3) & a_blue(s3) & Theme(s3,x3) & a_empty(s2) & Theme(s2,x3) & Actor(e1,x1) & v_ride(e1) & on(x1,x2) & n_bike(x2) & a_red(s1) & Theme(s1,x2) & n_girl(x1) & card_eq_2(x1))
exists s1 x1 x2 x3.(a_topic(x1) & Theme(s1,x3) & a_puppy(s1) & (x1 = x3) & n_chase(x1) & of(x1,x2) & n_boy(x2))