( Kepler-11b ( ( is ( ( an exoplanet ) ( ( ( discovered ( around ( the ( star Kepler-11 ) ) ) ) ( by ( ( ( the ( Kepler spacecraft ) ) , ) ( a ( NASA-led mission ) ) ) ) ) ( to ( discover ( Earth-like planets ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Kepler-11b)) (VP (VBZ is) (NP (NP (DT an) (NN exoplanet)) (VP (VBN discovered) (PP (IN around) (NP (DT the) (NN star) (NN Kepler-11))) (PP (IN by) (NP (NP (DT the) (NNP Kepler) (NN spacecraft)) (, ,) (NP (DT a) (JJ NASA-led) (NN mission)))) (S (VP (TO to) (VP (VB discover) (NP (JJ Earth-like) (NNS planets)))))))) (. .)))
Kepler-11b is an exoplanet discovered around the star Kepler-11 by the Kepler spacecraft, a NASA-led mission to discover Earth-like planets.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN exoplanet)) (VP (VBZ is) (ADVP (RB often)) (VP (VBN discovered) (SBAR (IN because) (S (NP (PRP it)) (VP (VBZ causes) (NP (DT a) (NN star) (S (VP (VP (TO to) (VP (VB move))) (CC or) (VP (TO to) (VP (VB dim))))))))))) (. .)))