(S (S (PP (IN In) (BASENP (NNP January) (NN 2011))) (COMMA ,) (S (BASENP (NNP Mandela)) (VP (VP (VBD received) (BASENP (NN hospital) (NN treatment))) (PP (IN for) (BASENP (DT an) (JJ acute) (JJ respiratory) (NN infection)))))) (PERIOD .))