-er ddd dde ddh ddk ddn ddo ddr dds ddz de- ded dee deh dek den deo der des dez dh- dhd dhe dhh dhk dho dhr dhs dke dkk dko dkr dks dnd dne dnh dnk dnn dno dnr dns dnz dod doe doh dok don doo dor dos doz drd dre drk drn dro drr drs drz dsd dse dsh dsk dsn dso dsr dss dsz dzd dze dzo dzr dzs ed- edd ede edh edk edn edo edr eds eed eee eek een eeo eer ees ehd ehe ehh ehn eho ehr ehs ekd eke ekh eko ekr eks en- end ene enh enk enn eno enr ens enz eo- eod eoe eoh eok eon eoo eor eos erd ere erh erk ern ero err ers erz es- esd ese esh esk esn eso esr ess eze ezh ezo ezr ezs ezz hdd hde hdh hdk hdn hdo hdr hds hdz he- hed hee heh hek hen heo her hes hez hhd hhe hhh hhk hhn hho hhr hhs hhz hkd hkh hkk hkn hko hkr hks hnd hne hnh hnk hnn hno hns hnz hod hoe hoh hok hon hoo hor hos hr- hrd hre hrh hrk hrn hro hrr hrs hrz hsd hse hsh hsk hsn hsr hss hsz hzd hze hzo hzs k-z kde kdh kdk kdo kdr kds ke- ked kee keh kek ken keo ker kes kez khe khh khk khn kho khr khs khz kke kkh kkk kkn kkr kks kn- knd kne knk knn kno knr kod koe koh kok kon koo kor kos koz krd krk krn kro krr krs ksd kse ksh ksk ksn kso ksr kss kzo ndd nde ndh ndk ndn ndo ndr nds ne- ned nee neh nek nen neo ner nes nez nhd nhe nhh nhk nhn nhr nhs nhz nke nkk nkn nko nkr nks nne nnh nnk nnn nno nns nnz no- nod noe noh nok non noo nor nos noz nrd nre nrk nrn nro nrr nrs nrz nsd nse nsh nsk nsn nso nsr nss nsz nzd nze nzo nzs nzz odd ode odh odn odo odr ods oed oee oeh oen oeo oer oes ohd ohe ohh ohn oho ohr ohs okd oke okk oko okr oks on- ond one onh onk onn ono onr ons oo- ood ooh ook oon ooo oor oos or- ord ore orh ork orn oro orr ors orz os- osd ose osh osk osn oso osr oss oze ozo ozs ozz rdd rde rdh rdn rdo rdr rds re- red ree reh rek ren reo rer res rez rh- rhd rhe rhh rhn rho rhr rhs rke rkk rko rks rkz rnd rnh rnn rno rnr rns rnz rod roe roh rok ron roo ror ros roz rrd rrh rrk rrn rrr rrs rsd rse rsh rsk rsn rso rsr rss rze rzo sdd sde sdh sdk sdn sdo sdr sds sdz se- sed see seh sek sen seo ser ses sez sh- shd she shh shk shn sho shr shs sk- skd ske skh skk sko skr sks snd sne snk snn sno snr sns sod soe soh sok son soo sor sos soz sr- srd sre srh srk srn sro srr srs ss- ssd sse ssh ssk ssn sso ssr sss ssz szd sze szr zds zed zee zeh zek zen zeo zer zes zez zhe zho zhr zhs zks znd zne znn zno zns zo- zod zoe zok zon zoo zor zos zrh zro zrs zse zsh zsz zzr zzs zzz