(SINV (SINV (S (S (BASENP (DT These) (NNS people)) (VP (VBD were) (ADJP (ADJP (ADVP (RB very) (COMMA ,) (RB very)) (JJ familiar)) (PP (IN with) (BASENP (DT the) (NN hotel) (NNS layouts)))))) (CC and) (S (BASENP (PRP it)) (VP (VBZ appears) (SBAR (S (BASENP (PRP they)) (VP (VBD had) (VP (VP (VP (VBN carried) (PRT (RP out))) (BASENP (DT a) (NN survey))) (ADVP (RB before))))))))) (COMMA ,) (SINV (VP (VBD said)) (NP (BASENP (DT an) (JJ unidentified) (NN commander)) (PP (IN of) (NP (BASENP (NNP MARCOS)) (COMMA ,) (NP (BASENP (NNP India) (POS 's)) (BASENP (JJ elite) (JJ marine) (NNS commandos)))))))) (PERIOD .))