-er -ey -up eee eek eeo eep eer eet eex eey eke eko ekp ekr ekt eku eky eo- eoe eok eoo eop eor eot eou ep- epe epo epp epr ept epu epx ere erk ero erp err ert eru ery ete etk eto etp etr ett etu etx ety eu- eue eup eur eut eux ex- exe exo exp exr ext exu exx exy eye eyo eyp eyr eyt k-t ke- kee kek keo kep ker ket kex key kke kkk kkp kkr kkt kku kky koe kok koo kop kor kot kou koy kpe kpk kpo kpp kpr kpt kpu krk kro krp krr krt kru kry kte ktk kto ktp ktr ktt ktu kue kuk kup kur kut kuu kuy kxo kxy kye kyo kyp kyr kyt kyu kyx oee oeo oep oer oet oex oey oke okk oko okp okr oku oo- ook ooo oop oor oot oox op- ope opk opo opp opr opt opx opy or- ore ork oro orp orr ort oru orx ory ot- ote otk oto otp otr ott otu ou- oue ouk ouo oup our out ox- oxo oxt oxx oxy oye oyo p-p pee pek peo pep per pet peu pex pey pke pko pkp pkr pkt pku pky poe pok poo pop por pot pou pox poy ppe ppk ppo ppp ppr ppt ppu ppx pre prk pro prp prr prt pru prx pry pt- pte ptk pto ptp ptr ptt ptu ptx pty pue puk pup pur put puu puy pxe pxk pxr pxt py- pye pyk pyo pyr pyt pyu pyx re- ree rek reo rep rer ret reu rex rey rke rkk rko rkp rkt rku rky roe rok roo rop ror rot rou rox roy rpe rpk rpo rpp rpr rpt rpu rpx rrk rrp rrr rrt rru rte rtk rto rtp rtr rtt rtu rtx rty rue ruk ruo rup rur rut ruu rux ruy rxp rxr ry- rye ryk ryo ryr ryu ryy t-x te- tee tek teo tep ter tet teu tex tey tke tkk tko tkp tkr tkt tky to- toe tok too top tor tot tou tox toy tpe tpk tpo tpp tpr tpt tpu tpx tre trk tro trp trr trt tru trx try tte ttk tto ttp ttr ttt ttu ttx tty tue tuk tuo tup tur tut tuu tux tuy txe txk txt txu tye tyo typ tyr tyt uee uep uer uet uey uke ukk ukp ukr uku uoe uok uoo uop uor uot uox up- upe upk upo upp upr upt upu upx ur- ure urk uro urp urr urt uru urx ury ute utk uto utp utr utt utu utx uty uue uur uut uuu uxo uxr uxt uxu uyo uyu xee xep xer xet xeu xex xke xok xoo xop xor xot xox xpe xpo xpp xpt xrt xrx xry xtp xtr xtx xty xue xup xxo xxp xxx xxy xyp xyr xyy yee yek yeo yep yer yet yex yey ykk yoe yok yoo yop yor yot you yox yoy ypo ypu yre yro yrp yrt yru yte ytk yto ytp ytr ytt ytu yue yuk yuo yup yur yut yuu yux yuy yxe yxy yye yyt yyu yyy