(S (S (S (S (BASENP (NN Thirty) (NNPS Americans)) (VP (VBD were) (VP (VBN killed) (PP (IN in) (BASENP (DT the) (NN crash)))))) (COMMA ,) (PP (VBG including) (NP (NP (QP (ADVP (IN at) (JJS least)) (NN seventeen)) (NNS members)) (PP (IN of) (NP (NP (NP (NP (BASENP (NNP SEAL) (NNP Team) (NNP 6)) (COMMA ,) (BASENP (NNP Air) (NNP Force) (NNS members))) (COMMA ,) (NP (BASENP (DT the) (NN helicopter) (POS 's)) (NNS crew))) (COMMA ,) (BASENP (DT a) (NN dog) (NN handler))) (CC and) (BASENP (DT a) (JJ civilian) (NN interpreter))))))) (COMMA ,) (SBAR (IN while) (S (NP (BASENP (NN eight) (NNS members)) (PP (IN of) (BASENP (DT the) (NNP Afghan) (NNP Army)))) (VP (VP (VP (VBD were) (ADVP (RB also))) (PP (IN on) (BASENP (NN board)))) (CC and) (VP (VBD died)))))) (PERIOD .))