( Furthermore ( , ( ( some sets ) ( ( may ( have ( ( as ( many ( as four ) ) ) ( to ( five ( distinct members ) ) ) ) ) ) ; ) ) ) )
(ROOT (S (ADVP (RB Furthermore)) (, ,) (NP (DT some) (NNS sets)) (VP (MD may) (VP (VB have) (NP (NP (QP (RB as) (JJ many) (IN as) (CD four))) (PP (TO to) (NP (CD five) (JJ distinct) (NNS members)))))) (: ;)))
Furthermore, some sets may have as many as four to five distinct members;
(ROOT (S (NP (CD Five) (JJ mass) (NNS distinctions)) (VP (VBP have) (ADVP (RB radically)) (VP (VBN altered) (NP (NP (DT the) (NN history)) (PP (IN of) (NP (NN life)))))) (. .)))