( This ( then ( ( brings ( ( the ( total number ) ) ( of ( planets ( discovered ( ( ( ( circling ( other stars ) ) , ) so ) ( ( called exoplanets ) ( to 50 ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (DT This)) (ADVP (RB then)) (VP (VBZ brings) (NP (NP (DT the) (JJ total) (NN number)) (PP (IN of) (NP (NP (NNS planets)) (VP (VBN discovered) (S (S (VP (VBG circling) (NP (JJ other) (NNS stars)))) (, ,) (RB so) (S (VP (VBN called) (NP (NNS exoplanets)) (PP (TO to) (NP (CD 50))))))))))) (. .)))
This then brings the total number of planets discovered circling other stars, so called exoplanets to 50.
(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))))))))))) (. .)))