(S (S (S (PP (IN In) (BASENP (NNP December))) (COMMA ,) (S (NP (NP (BASENP (DT the) (NNP Committee)) (SBAR (S (VP (TO to) (VP (NNP Protect) (BASENP (NNPS Journalists))))))) (PRN (LRB -LRB-) (BASENP (NNP CPJ)) (RRB -RRB-))) (VP (VP (VP (VBD addressed) (BASENP (DT an) (JJ open) (NN letter))) (PP (TO to) (BASENP (NNP Syrian) (NNP President) (NNP Al-Assad)))) (S (VP (VBG calling) (PP (IN for) (NP (BASENP (DT the) (NN release)) (PP (IN of) (NP (BASENP (DT all) (NNS journalists)) (PP (IN in) (BASENP (NN detention)))))))))))) (COLON ;) (S (BASENP (DT the) (NNP CPJ)) (VP (VBD documented) (NP (BASENP (NN 29) (NNS cases)) (PP (IN of) (S (BASENP (NNS journalists)) (VP (VBG being) (VP (VBN detained) (PP (IN in) (BASENP (NN 2011))))))))))) (PERIOD .))