Monsters have had starring roles in SF from its early years.
( Monsters ( ( have ( had ( ( starring ( roles ( in SF ) ) ) ( from ( its ( early years ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Monsters)) (VP (VBP have) (VP (VBN had) (S (VP (VBG starring) (NP (NP (NNS roles)) (PP (IN in) (NP (NNP SF)))) (PP (IN from) (NP (PRP$ its) (JJ early) (NNS years))))))) (. .)))
Since the beginning, monsters have been front and center in SF.
( ( Since ( the beginning ) ) ( , ( monsters ( ( have ( been ( ( ( front and ) center ) ( in SF ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Since) (NP (DT the) (NN beginning))) (, ,) (NP (NNS monsters)) (VP (VBP have) (VP (VBN been) (NP (NP (NN front) (CC and) (NN center)) (PP (IN in) (NP (NNP SF)))))) (. .)))