It spoils the sport.
( It ( ( spoils ( the sport ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ spoils) (NP (DT the) (NN sport))) (. .)))
It makes it better.
( It ( ( makes ( it better ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ makes) (S (NP (PRP it)) (ADJP (JJR better)))) (. .)))