(S (S (S (SBAR (IN As) (S (BASENP (NNS investigations)) (VP (VB continue)))) (COMMA ,) (S (BASENP (DT all) (NNS bodies)) (VP (VBP have) (VP (VBN been) (VP (VBN removed) (PP (IN from) (BASENP (DT the) (JJ sub-surface) (NNP Circle) (NN line) (NNS trains)))))))) (CONJP (COMMA ,) (CC but)) (S (S (NP (BASENP (DT the) (NNS carriages)) (BASENP (PRP themselves))) (VP (VP (VBP are) (ADVP (RB still))) (ADVP (FW in) (FW situ)))) (SBAR (IN while) (S (BASENP (DT a) (JJ painstaking) (JJ forensic) (NN investigation)) (VP (VBZ takes) (BASENP (NN place))))))) (PERIOD .))