-er -ey -up eee een eeo eep eer eet eey en- ene enn eno enp enr ent enu eny eo- eoe eon eoo eop eor eot eou ep- epe epn epo epp epr ept epu ere ern ero erp err ert eru ery ete etn eto etp etr ett etu ety eu- eue eun eup eur eut eye eyn eyo eyp eyr eyt ne- nee nen neo nep ner net neu ney nne nnn nno nnp nnt nnu no- noe non noo nop nor not nou noy npe npn npo npp npr npt npu nre nrn nro nrp nrr nrt nru nry nte ntn nto ntp ntr ntt ntu nue nun nuo nup nur nut nuu nuy nye nyn nyo nyp nyt nyu nyy oee oen oeo oep oer oet oey on- one onn ono onp onr ont onu ony oo- oon ooo oop oor oot op- ope opn opo opp opr opt opy or- ore orn oro orp orr ort oru ory ot- ote otn oto otp otr ott otu ou- oue oun ouo oup our out oye oyo p-p pee pen peo pep per pet peu pey pn- pne pnn pno pnp pnr pnt pnu pny poe pon poo pop por pot pou poy ppe ppn ppo ppp ppr ppt ppu pre prn pro prp prr prt pru pry pt- pte ptn pto ptp ptr ptt ptu pty pue pun pup pur put puu puy py- pye pyn pyo pyr pyt pyu re- ree ren reo rep rer ret reu rey rnn rno rnp rnr rnt rnu rny roe ron roo rop ror rot rou roy rpe rpn rpo rpp rpr rpt rpu rrn rrp rrr rrt rru rte rtn rto rtp rtr rtt rtu rty rue run ruo rup rur rut ruu ruy ry- rye ryn ryo ryr ryu ryy te- tee ten teo tep ter tet teu tey tne tnn tno tnp tnr tnt to- toe ton too top tor tot tou toy tpe tpn tpo tpp tpr tpt tpu tre trn tro trp trr trt tru try tte ttn tto ttp ttr ttt ttu tty tue tun tuo tup tur tut tuu tuy tye tyn tyo typ tyr tyt uee uen uep uer uet uey un- une unn uno unp unr unt unu uny uoe uon uoo uop uor uot up- upe upn upo upp upr upt upu ur- ure urn uro urp urr urt uru ury ute utn uto utp utr utt utu uty uue uun uur uut uuu uyo uyu yee yen yeo yep yer yet yey yne ynn ynp ynu yny yoe yon yoo yop yor yot you yoy ypo ypu yre yrn yro yrp yrt yru yte ytn yto ytp ytr ytt ytu yue yun yuo yup yur yut yuu yuy yye yyt yyu yyy