(S (S (NP (DT The) (NP (NNP African) (NP (BASENP (NNPS Children) (POS 's)) (NNP Choir)))) (VP (ADVP (RB also)) (VP (VP (VBD sang) (PP (IN on) (BASENP (NN stage)))) (PP (IN with) (NP (BASENP (DT this) (NN years)) (BASENP (JJ Top) (NN 10))))))) (PERIOD .))