-er ddd dde ddh ddk ddn ddo ddr dds de- ded dee deh dek den deo der des dh- dhd dhe dhh dhk dho dhr dhs dke dkk dko dkr dks dnd dne dnh dnk dnn dno dnr dns dod doe doh dok don doo dor dos drd dre drk drn dro drr drs dsd dse dsh dsk dsn dso dsr dss 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 eo- eod eoe eoh eok eon eoo eor eos erd ere erh erk ern ero err ers es- esd ese esh esk esn eso esr ess hdd hde hdh hdk hdn hdo hdr hds he- hed hee heh hek hen heo her hes hhd hhe hhh hhk hhn hho hhr hhs hkd hkh hkk hkn hko hkr hks hnd hne hnh hnk hnn hno hns hod hoe hoh hok hon hoo hor hos hr- hrd hre hrh hrk hrn hro hrr hrs hsd hse hsh hsk hsn hsr hss kde kdh kdk kdo kdr kds ke- ked kee keh kek ken keo ker kes khe khh khk khn kho khr khs kke kkh kkk kkn kkr kks kn- knd kne knk knn kno knr kod koe koh kok kon koo kor kos krd krk krn kro krr krs ksd kse ksh ksk ksn kso ksr kss ndd nde ndh ndk ndn ndo ndr nds ne- ned nee neh nek nen neo ner nes nhd nhe nhh nhk nhn nhr nhs nke nkk nkn nko nkr nks nne nnh nnk nnn nno nns no- nod noe noh nok non noo nor nos nrd nre nrk nrn nro nrr nrs nsd nse nsh nsk nsn nso nsr nss 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 os- osd ose osh osk osn oso osr oss rdd rde rdh rdn rdo rdr rds re- red ree reh rek ren reo rer res rh- rhd rhe rhh rhn rho rhr rhs rke rkk rko rks rnd rnh rnn rno rnr rns rod roe roh rok ron roo ror ros rrd rrh rrk rrn rrr rrs rsd rse rsh rsk rsn rso rsr rss sdd sde sdh sdk sdn sdo sdr sds se- sed see seh sek sen seo ser ses 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 sr- srd sre srh srk srn sro srr srs ss- ssd sse ssh ssk ssn sso ssr sss