(S (S (BASENP (DT The) (ADJP (NN 16) (NN year)) (JJ old) (JJ private-public) (NN project)) (VP (VBZ aims) (S (VP (TO to) (VP (VP (VB add) (BASENP (NNPS Poliomyelitis))) (PP (TO to) (NP (BASENP (DT the) (NN list)) (PP (IN of) (NP (BASENP (NN childhood) (NNS diseases)) (SBAR (WHNP (WDT which)) (S (VP (VBP have) (VP (VBN been) (VP (VBN eliminated))))))))))))))) (PERIOD .))