-er -ey ddd dde ddk ddn ddo ddr dds ddy de- ded dee dek den deo der des dey dke dkk dko dkr dks dnd dne dnk dnn dno dnr dns dny dod doe dok don doo dor dos doy drd dre drk drn dro drr drs dry dsd dse dsk dsn dso dsr dss dsy dy- dyd dye dyk dyn dyo dyr dys dyy ed- edd ede edk edn edo edr eds edy eed eee eek een eeo eer ees eey ekd eke eko ekr eks eky en- end ene enk enn eno enr ens eny eo- eod eoe eok eon eoo eor eos erd ere erk ern ero err ers ery es- esd ese esk esn eso esr ess esy eyd eye eyn eyo eyr eys kde kdk kdo kdr kds kdy ke- ked kee kek ken keo ker kes key kke kkk kkn kkr kks kky kn- knd kne knk knn kno knr kod koe kok kon koo kor kos koy krd krk krn kro krr krs kry ksd kse ksk ksn kso ksr kss kyd kye kyn kyo kyr kys ndd nde ndk ndn ndo ndr nds ndy ne- ned nee nek nen neo ner nes ney nke nkk nkn nko nkr nks nky nne nnk nnn nno nns no- nod noe nok non noo nor nos noy nrd nre nrk nrn nro nrr nrs nry nsd nse nsk nsn nso nsr nss nsy nyd nye nyk nyn nyo nys nyy odd ode odn odo odr ods oed oee oen oeo oer oes oey okd oke okk oko okr oks on- ond one onk onn ono onr ons ony oo- ood ook oon ooo oor oos or- ord ore ork orn oro orr ors ory os- osd ose osk osn oso osr oss oyd oye oyo oys rdd rde rdn rdo rdr rds rdy re- red ree rek ren reo rer res rey rke rkk rko rks rky rnd rnn rno rnr rns rny rod roe rok ron roo ror ros roy rrd rrk rrn rrr rrs rsd rse rsk rsn rso rsr rss ry- ryd rye ryk ryn ryo ryr rys ryy sdd sde sdk sdn sdo sdr sds sdy se- sed see sek sen seo ser ses sey sk- skd ske skk sko skr sks sky snd sne snk snn sno snr sns sny sod soe sok son soo sor sos soy sr- srd sre srk srn sro srr srs sry ss- ssd sse ssk ssn sso ssr sss sy- syd sye syk syn syr sys yde ydn ydo yds ydy yed yee yek yen yeo yer yes yey ykk ykn ynd yne ynk ynn yns yny yod yoe yok yon yoo yor yos yoy yre yrn yro yrs yse ysk yso ysr yss ysy yye yys yyy