(S (S (NP (BASENP (DT A) (JJ civilian) (NN helicopter)) (VP (VBN chartered) (PP (IN by) (BASENP (NNP NATO))))) (VP (VBZ has) (VP (VP (VBN crashed) (SBAR (IN while) (S (VP (VP (VBG taking) (PRT (RP off))) (PP (IN from) (NP (BASENP (NNP Kandahar) (NNP International) (NNP Airport)) (PP (IN in) (BASENP (NNP Afghanistan))))))))) (COMMA ,) (S (VP (VBG killing) (BASENP (NN sixteen))))))) (PERIOD .))