-er -up ddd dde ddg ddk ddo ddp ddr dds ddu de- ded dee deg dek deo dep der des deu dgd dge dgg dgk dgp dgr dgs dgu dke dkg dkk dko dkp dkr dks dku dod doe dog dok doo dop dor dos dou dpd dpe dpg dpk dpo dpp dpr dps dpu drd dre drg drk dro drp drr drs dru dsd dse dsg dsk dso dsp dsr dss dsu dud due dug duk duo dup dur dus ed- edd ede edg edk edo edp edr eds edu eed eee eeg eek eeo eep eer ees egd ege egg ego egp egr egs egu ekd eke ekg eko ekp ekr eks eku eo- eod eoe eog eok eoo eop eor eos eou ep- epd epe epg epo epp epr eps epu erd ere erg erk ero erp err ers eru es- esd ese esg esk eso esp esr ess esu eu- eud eue eug eup eur eus g-d g-p gdd gde gdk gdo gdp gdr gds gdu ge- ged gee geg gek geo gep ger ges geu ggd ggg ggo ggp ggr ggs ggu gkd gko gkp gks god goe gog gok goo gop gor gos gou gpd gpe gpg gpk gpo gpp gpr gps gpu grd gre grg grk gro grp grr grs gru gsd gse gsg gsk gso gsp gsr gss gsu gu- gud gue gug guk guo gup gur gus guu kde kdg kdk kdo kdp kdr kds kdu ke- ked kee keg kek keo kep ker kes kgd kgo kgp kgs kgu kke kkk kkp kkr kks kku kod koe kog kok koo kop kor kos kou kpd kpe kpk kpo kpp kpr kps kpu krd krg krk kro krp krr krs kru ksd kse ksg ksk kso ksp ksr kss ksu kud kue kug kuk kup kur kus kuu odd ode odg odo odp odr ods odu oed oee oeg oeo oep oer oes ogd oge ogg ogo ogp ogs okd oke okg okk oko okp okr oks oku oo- ood oog ook ooo oop oor oos op- opd ope opg opk opo opp opr ops or- ord ore org ork oro orp orr ors oru os- osd ose osg osk oso osp osr oss osu ou- oud oue ouk ouo oup our ous p-p pdd pde pdg pdk pdo pdp pdr pds pdu ped pee peg pek peo pep per pes peu pgd pge pgg pgk pgo pgp pgr pgs pkd pke pkg pko pkp pkr pks pku pod poe pog pok poo pop por pos pou ppd ppe ppg ppk ppo ppp ppr pps ppu prd pre prg prk pro prp prr prs pru ps- psd pse psg psk pso psp psr pss psu pud pue pug puk pup pur pus puu rdd rde rdg rdo rdp rdr rds rdu re- red ree reg rek reo rep rer res reu rgd rge rgg rgk rgo rgp rgr rgs rke rkg rkk rko rkp rks rku rod roe rog rok roo rop ror ros rou rpd rpe rpg rpk rpo rpp rpr rps rpu rrd rrg rrk rrp rrr rrs rru rsd rse rsg rsk rso rsp rsr rss rsu rud rue rug ruk ruo rup rur rus ruu sdd sde sdg sdk sdo sdp sdr sds sdu se- sed see seg sek seo sep ser ses seu sgd sge sgg sgk sgo sgp sgr sgs sgu sk- skd ske skg skk sko skp skr sks sku sod soe sog sok soo sop sor sos sou spd spe spg spk spo spp spr sps spu sr- srd sre srg srk sro srp srr srs ss- ssd sse ssg ssk sso ssp ssr sss ssu sud sue sug suk suo sup sur sus suu udd ude udg udk udo udp udr uds udu ued uee ueg uep uer ues uge ugg ugk ugo ugp ugr ugs ugu uke ukk ukp ukr uku uod uoe uog uok uoo uop uor uos up- upd upe upg upk upo upp upr ups upu ur- urd ure urg urk uro urp urr urs uru usd use usg usk uso usp usr uss usu uue uug uur uus uuu