(S (S (PP (IN In) (BASENP (NNP Gaza))) (COMMA ,) (S (S (BASENP (DT the) (JJ median) (NN age)) (VP (VBZ is) (BASENP (NN 15)))) (CC and) (S (NP (BASENP (QP (RB about) (NN 80)) (NN %)) (PP (IN of) (BASENP (DT the) (NN population)))) (VP (VBP live) (PP (IN in) (BASENP (NN poverty))))))) (PERIOD .))