( ( ( ( ( ( ( Interesting ( star clusters ) ) , ) nebulae ) , ) and ) ( galaxies ( found ( among ( the constellations ) ) ) ) ) ( ( are ( ( described and ) illustrated ) ) . ) )
(ROOT (S (NP (NP (NP (VBG Interesting) (NN star) (NNS clusters)) (, ,) (NP (NN nebulae)) (, ,)) (CC and) (NP (NP (NNS galaxies)) (VP (VBN found) (PP (IN among) (NP (DT the) (NNS constellations)))))) (VP (VBP are) (VP (VBN described) (CC and) (VBN illustrated))) (. .)))
Interesting star clusters, nebulae, and galaxies found among the constellations are described and illustrated.
(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))))))))) (. .)))