A young boy is carrying tire rubber down a dirty road.
A boy is carrying tire rubber down the road.
A young boy can be commonly referred to as a boy.  A dirty road is still a road.
exists e1 s1 x1 x2 x3 x4 x5.(down(e1,x4) & n_road(x4) & of(x4,x5) & n_dirty(x5) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & n_rubber(x2) & of(x2,x3) & n_tire(x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(n_road(x4) & down(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & n_rubber(x2) & of(x2,x3) & n_tire(x3) & n_boy(x1))