( ( ( ( ( The ( cold waters ) ) ( of ( ( the ( northeastern ( Pacific ( Ocean ( conceal one ) ) ) ) ) ( of ( ( the ( ( most spectacular ) ( marine ecosystems ) ) ) ( on earth ) ) ) ) ) ) : ) ( ( the ( submarine forests ) ) ( of ( giant kelp ) ) ) ) . )
(ROOT (NP (NP (NP (DT The) (JJ cold) (NNS waters)) (PP (IN of) (NP (NP (DT the) (JJ northeastern) (NNP Pacific) (NNP Ocean) (NNP conceal) (NN one)) (PP (IN of) (NP (NP (DT the) (ADJP (RBS most) (JJ spectacular)) (JJ marine) (NNS ecosystems)) (PP (IN on) (NP (NN earth)))))))) (: :) (NP (NP (DT the) (JJ submarine) (NNS forests)) (PP (IN of) (NP (JJ giant) (NN kelp)))) (. .)))
The cold waters of the northeastern Pacific Ocean conceal one of the most spectacular marine ecosystems on earth: the submarine forests of giant kelp.
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (NP (NN earth) (POS 's)) (NN water)))) (VP (VBZ is) (VP (VBN located) (PP (IN in) (NP (NNS oceans)))))))