( Clouds ( ( surround ( ( some peaks ) ( in ( the ( Andes Mountains ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Clouds)) (VP (VBP surround) (NP (NP (DT some) (NNS peaks)) (PP (IN in) (NP (DT the) (NNP Andes) (NNPS Mountains))))) (. .)))
Clouds surround some peaks in the Andes Mountains.
(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)))))))))))))) (. .)))