-er -up ddd dde ddk ddn ddo ddp ddr dds ddu de- ded dee dek den deo dep der des deu dke dkk dko dkp dkr dks dku dnd dne dnk dnn dno dnp dnr dns dod doe dok don doo dop dor dos dou dpd dpe dpk dpn dpo dpp dpr dps dpu drd dre drk drn dro drp drr drs dru dsd dse dsk dsn dso dsp dsr dss dsu dud due duk dun duo dup dur dus ed- edd ede edk edn edo edp edr eds edu eed eee eek een eeo eep eer ees ekd eke eko ekp ekr eks eku en- end ene enk enn eno enp enr ens enu eo- eod eoe eok eon eoo eop eor eos eou ep- epd epe epn epo epp epr eps epu erd ere erk ern ero erp err ers eru es- esd ese esk esn eso esp esr ess esu eu- eud eue eun eup eur eus kde kdk kdo kdp kdr kds kdu ke- ked kee kek ken keo kep ker kes kke kkk kkn kkp kkr kks kku kn- knd kne knk knn kno knp knr knu kod koe kok kon koo kop kor kos kou kpd kpe kpk kpn kpo kpp kpr kps kpu krd krk krn kro krp krr krs kru ksd kse ksk ksn kso ksp ksr kss ksu kud kue kuk kun kup kur kus kuu ndd nde ndk ndn ndo ndp ndr nds ndu ne- ned nee nek nen neo nep ner nes neu nke nkk nkn nko nkp nkr nks nku nne nnk nnn nno nnp nns nnu no- nod noe nok non noo nop nor nos nou npd npe npn npo npp npr nps npu nrd nre nrk nrn nro nrp nrr nrs nru nsd nse nsk nsn nso nsp nsr nss nsu nud nue nuk nun nuo nup nur nus nuu odd ode odn odo odp odr ods odu oed oee oen oeo oep oer oes okd oke okk oko okp okr oks oku on- ond one onk onn ono onp onr ons onu oo- ood ook oon ooo oop oor oos op- opd ope opk opn opo opp opr ops or- ord ore ork orn oro orp orr ors oru os- osd ose osk osn oso osp osr oss osu ou- oud oue ouk oun ouo oup our ous p-p pdd pde pdk pdn pdo pdp pdr pds pdu ped pee pek pen peo pep per pes peu pkd pke pkn pko pkp pkr pks pku pn- pnd pne pnk pnn pno pnp pnr pns pnu pod poe pok pon poo pop por pos pou ppd ppe ppk ppn ppo ppp ppr pps ppu prd pre prk prn pro prp prr prs pru ps- psd pse psk psn pso psp psr pss psu pud pue puk pun pup pur pus puu rdd rde rdn rdo rdp rdr rds rdu re- red ree rek ren reo rep rer res reu rke rkk rko rkp rks rku rnd rnn rno rnp rnr rns rnu rod roe rok ron roo rop ror ros rou rpd rpe rpk rpn rpo rpp rpr rps rpu rrd rrk rrn rrp rrr rrs rru rsd rse rsk rsn rso rsp rsr rss rsu rud rue ruk run ruo rup rur rus ruu sdd sde sdk sdn sdo sdp sdr sds sdu se- sed see sek sen seo sep ser ses seu sk- skd ske skk sko skp skr sks sku snd sne snk snn sno snp snr sns snu sod soe sok son soo sop sor sos sou spd spe spk spn spo spp spr sps spu sr- srd sre srk srn sro srp srr srs ss- ssd sse ssk ssn sso ssp ssr sss ssu sud sue suk sun suo sup sur sus suu udd ude udk udn udo udp udr uds udu ued uee uen uep uer ues uke ukk ukn ukp ukr uku un- und une unk unn uno unp unr uns unu uod uoe uok uon uoo uop uor uos up- upd upe upk upn upo upp upr ups upu ur- urd ure urk urn uro urp urr urs uru usd use usk usn uso usp usr uss usu uue uun uur uus uuu