(S (S (NP (BASENP (NN 15) (JJ elite) (NNS commandos)) (PP (IN in) (BASENP (DT the) (JJ Pakistan) (JJ anti-terror) (NN unit)))) (VP (VBP have) (VP (VBN been) (VP (VBN killed) (PP (IN in) (BASENP (DT a) (NN suicide) (NN car) (NN bomb) (NN attack))))))) (PERIOD .))