(S (S (SBAR (IN With) (S (BASENP (DT these)) (VP (VBN exhausted)))) (COMMA ,) (S (BASENP (NNP IPv6)) (VP (VBZ is) (VP (VBN designed) (S (VP (TO to) (VP (VB increase) (S (BASENP (DT the) (NN limit)) (NP (BASENP (QP (NN 340) (NN undecillion))) (COLON --) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (BASENP (QP (NN 340) (NN trillion) (NN trillion) (NN trillion))))))))))))))) (PERIOD .))