( We ( even ( ( ( find ( marine fossils ) ) ( on ( ( ( the tops ) ( of ( the ( highest mountains ) ) ) ) ( , ( ( including ( Mount Everest ) ) ( , ( demonstrating ( that ( ( ( the layers ) ( ( from which ) ( ( the mountains ) formed ) ) ) ( ( were once ) ( under water ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (PRP We)) (ADVP (RB even)) (VP (VBP find) (NP (JJ marine) (NNS fossils)) (PP (IN on) (S (NP (NP (DT the) (NNS tops)) (PP (IN of) (NP (DT the) (JJS highest) (NNS mountains)))) (, ,) (PP (VBG including) (NP (NNP Mount) (NNP Everest))) (, ,) (VP (VBG demonstrating) (SBAR (IN that) (S (NP (NP (DT the) (NNS layers)) (SBAR (WHPP (IN from) (WHNP (WDT which))) (S (NP (DT the) (NNS mountains)) (VP (VBD formed))))) (VP (VBD were) (ADVP (RB once)) (PP (IN under) (NP (NN water)))))))))) (. .)))
We even find marine fossils on the tops of the highest mountains, including Mount Everest, demonstrating that the layers from which the mountains formed were once under water.
(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)))))))))))))) (. .)))