( These ( ( are ( some ( of ( ( the ( highest ( mountain peaks ) ) ) ( in ( the world ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These)) (VP (VBP are) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (JJS highest) (NN mountain) (NNS peaks)) (PP (IN in) (NP (DT the) (NN world))))))) (. .)))
These are some of the highest mountain peaks in the world.
(ROOT (S (NP (NNS Scientists)) (VP (VBP know) (SBAR (IN that) (S (NP (DT some) (NNS mountains)) (VP (VBD were) (ADVP (RB once)) (PP (IN at) (NP (NP (DT the) (NN bottom)) (PP (IN of) (NP (DT an) (NN ocean))))) (SBAR (IN because) (S (NP (JJ marine) (NNS fossils)) (VP (VBP have) (VP (VBN been) (VP (VBN found) (PP (IN on) (NP (NP (DT the) (NNS peaks)) (PP (IN of) (NP (DT some) (NNS mountains)))))))))))))) (. .)))