( ( As ( ( the stars ) ( come out ) ) ) ( , ( ( ( two ( enthusiastic astronomers ) ) ( ( ( showing off ) ( ( ( billions and ) billions ) ( of ( planets ( , ( stars ( , ( galaxies ( , ( globular ( ( clusters and ) novas ) ) ) ) ) ) ) ) ) ) ) ( through ( high quality ) ) ) ) ( telescopes . ) ) ) )
(ROOT (S (SBAR (IN As) (S (NP (DT the) (NNS stars)) (VP (VBP come) (PRT (RP out))))) (, ,) (NP (NP (CD two) (JJ enthusiastic) (NNS astronomers)) (VP (VBG showing) (PRT (RP off)) (NP (NP (NNS billions) (CC and) (NNS billions)) (PP (IN of) (NP (NNS planets) (, ,) (NNS stars) (, ,) (NNS galaxies) (, ,) (NN globular) (NNS clusters) (CC and) (NNS novas)))) (PP (IN through) (NP (JJ high) (NN quality))))) (VP (VBZ telescopes)) (. .)))
As the stars come out, two enthusiastic astronomers showing off billions and billions of planets, stars, galaxies, globular clusters and novas through high quality telescopes.
(ROOT (S (NP (DT A) (NN galaxy)) (VP (VBZ is) (VP (RBS best) (VBN described) (PP (IN as) (NP (NP (DT a) (NN cluster)) (PP (IN of) (NP (NP (NNS billions)) (PP (IN of) (NP (NNS stars))))))))) (. .)))