( Stars ( ( ( ( form ( ( the center ) ( of ( solar systems ) ) ) ) , ) ( just ( like ( ( ( ( ( our ( own star ) ) , ) ( the Sun ) ) , ) ( is ( ( the center ) ( of ( our ( own ( Solar System ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Stars)) (VP (VBP form) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (JJ solar) (NNS systems)))) (, ,) (SBAR (RB just) (IN like) (S (NP (NP (PRP$ our) (JJ own) (NN star)) (, ,) (NP (DT the) (NNP Sun)) (, ,)) (VP (VBZ is) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (PRP$ our) (JJ own) (NNP Solar) (NNP System)))))))) (. .)))
Stars form the center of solar systems, just like our own star, the Sun, is the center of our own Solar System.
(ROOT (S (NP (NP (RB Only) (DT the) (NN sun)) (PP (IN in) (NP (PRP$ our) (JJ solar) (NN system)))) (VP (VBP give) (PRT (RP off)) (NP (PRP$ their) (JJ own) (NN light))) (. .)))
Only the sun in our solar system give off their own light.