(S (S (S (PP (IN In) (BASENP (NN 1975))) (S (BASENP (DT the) (NN peak)) (VP (VBD was) (VP (VP (VBN surveyed) (PP (IN at) (NP (BASENP (DT a) (NN height)) (PP (IN of) (BASENP (NN 8) (NN 848) (NNS metres)))))) (COMMA ,) (PP (IN in) (NP (BASENP (NN line)) (PP (IN with) (BASENP (JJ previous) (NNS calculations))))))))) (CONJP (COMMA ,) (CC but)) (S (NP (BASENP (DT a) (NNP U.S.) (NN survey) (NN team)) (PP (IN in) (BASENP (NN 1999)))) (VP (VP (VBD measured) (BASENP (PRP it))) (PP (IN at) (BASENP (NN 8) (NN 850m)))))) (PERIOD .))