like a precious and finely cut diamond , magnificent to behold in its sparkling beauty yet in reality it 's one tough rock . 
(ROOT (S (PP (IN like) (NP (NP (DT a) (ADJP (ADJP (JJ precious)) (CC and) (ADJP (RB finely) (VBN cut))) (NN diamond)) (, ,) (ADJP (JJ magnificent) (S (VP (TO to) (VP (VB behold) (PP (IN in) (NP (PRP$ its) (JJ sparkling) (NN beauty))))))))) (CC yet) (S (PP (IN in) (NP (NN reality))) (NP (PRP it)) (VP (VBZ 's) (NP (CD one) (JJ tough) (NN rock)))) (. .)))
(ROOT (S (PP (IN ) (NP (NP (DT ) (ADJP (ADJP (JJ )) (CC ) (ADJP (RB ) (VBN ))) (NN )) (, ) (ADJP (JJ ) (S (VP (TO ) (VP (VB ) (PP (IN ) (NP (PRP$ ) (JJ ) (NN ))))))))) (CC ) (S (PP (IN ) (NP (NN ))) (NP (PRP )) (VP (VBZ ) (NP (CD ) (JJ ) (NN )))) (. )))