-er bbb bbe bbh bbk bbo bbr bbs be- beb bee beh bek beo ber bes bhb bhe bhh bhk bho bhr bhs bkb bke bkk bko bkr bks bob boe boh bok boo bor bos brb bre brh brk bro brr brs bsb bse bsh bsk bso bsr bss ebb ebe ebh ebk ebo ebr ebs eeb eee eek eeo eer ees ehb ehe ehh eho ehr ehs ekb eke ekh eko ekr eks eo- eob eoe eoh eok eoo eor eos erb ere erh erk ero err ers es- esb ese esh esk eso esr ess hbb hbe hbh hbk hbo hbr hbs he- heb hee heh hek heo her hes hhb hhe hhh hhk hho hhr hhs hkb hkh hkk hko hkr hks hob hoe hoh hok hoo hor hos hr- hrb hre hrh hrk hro hrr hrs hsb hse hsh hsk hsr hss kbb kbe kbh kbk kbo kbr kbs ke- keb kee keh kek keo ker kes khe khh khk kho khr khs kkb kke kkh kkk kkr kks kob koe koh kok koo kor kos krk kro krr krs ksb kse ksh ksk kso ksr kss ob- obb obe obh obk obo obr obs oeb oee oeh oeo oer oes ohe ohh oho ohr ohs okb oke okk oko okr oks oo- oob ooh ook ooo oor oos or- orb ore orh ork oro orr ors os- osb ose osh osk oso osr oss rbb rbe rbh rbk rbo rbr rbs re- reb ree reh rek reo rer res rh- rhb rhe rhh rho rhr rhs rkb rke rkk rko rks rob roe roh rok roo ror ros rrb rrh rrk rrr rrs rsb rse rsh rsk rso rsr rss sbb sbe sbh sbk sbo sbr sbs se- seb see seh sek seo ser ses sh- shb she shh shk sho shr shs sk- skb ske skh skk sko skr sks sob soe soh sok soo sor sos sr- srb sre srh srk sro srr srs ss- ssb sse ssh ssk sso ssr sss

-ose bbbb bbbs bbeb bbhs bebb bebe bebo beeb beek beer bees behr behs beke beko beks beo- beok beor beos bere berk bero berr bers bes- bese besh besk beso bess bher bhhs bhor bkhs bobb bobe bobo bobs boee boeo boer boes boho bohr bohs boke boko boks boob booe booh book boor boos bor- bore borh bork boro borr bors bose bosh bosk boso boss breb bree brek breo brer bres brhs brkb brob broe broh brok broo bror bros brrr brrs brsb brsr bseb bsee bser bses bshs bsos bsse ebbo ebbr ebbs eber ebes ebhs eboe eboo ebor ebos ebro eeee eees eehs eeke eeks eero eers eese eesk eheh eher ehhs ehre ekeb ekek eker ekes ekho ekhs ekos eoes eore erbb erbe ereb erer eres erhs erke erks erob eroe eroo eros erre erro errs erse ersh erso esbo esbs esee esek eseo eser eses eshs eske esko esks eso- esok esos esse essh esso hbbs hbes hbhs hbos hbrs hbss hebb hebe hebo hebr heeb heek heer hees hehe heho hehs heke heor herb here herk hero herr hers hesh hess hhhh hhhs hkse hobe hobo hobs hoek hoer hoes hohe hoho hoke hoko hoks hooe hook hoor hoos hore hork horo horr hors hose hosh hoss hree hrhs hrob hros hrso hses hshs hsob hsse k-os kbbb kbbe kbbk kbbo kbbr kbbs kbeb kbee kbeh kbek kbeo kber kbes kbhb kbhe kbhh kbhr kbhs kbkb kbkk kbko kbkr kbob kboe kbok kboo kbos kbrb kbre kbrh kbrk kbro kbsb kbsk kbso kbsr kbss kebb kebe kebr keeh keek keer kees kehk kehr kehs kekb keke keko keks keok keos ker- kerb kere kerk kero kerr kers kesb kesh kesk keso kesr kess khbr khbs kheb kher khhk khho khhs khke khkk khkr khks khob khoe khok khor khrk khro khrr khse khss kkbb kkbe kkbo kkbr kkbs kkhb kkhh kkhk kkhr kkkk kkob kkoh kkoo kkor kkrb kkre kkrh kkrk kkro kkrr kkrs kkse kksr kkss kobb kobe kobk kobo kobr kobs koes kohh koho kohr kohs kokb koke kokh kokk koko kokr koks koob kook kooo koor koos korb kore kork koro korr kors kos- kosb kose kosh koso kosr koss krbb krbe krbk krbr kreb kree kreh krek kreo kres krhs krke krkh krkk krko krkr krks krob kroe kroh krok kroo kror kros krrb krre krrk krro krrr krrs krse krsh krsk krsr krss ksbh ksbr ksbs ksee kseh ksek kseo kser kshb kshe kshk ksho kshr kshs kskb kske kskk ksko kskr ksks ksob ksok ksoo ksor ksos ksrb ksrh ksro ksrr ksrs ksse ksso kssr ksss o-eo obbo ober obes obhs obkb oboe obok obor obos obre obrh obro obsr obss oere oers oese ohbe ohee oher ohho ohhs ohob ohoh ohok ohos ohre ohso ohss okeh oker okes okko okok okor okre okro okso oobe ooer ooes ooho oohs oooh oooo ooos oore oose orbb orbe orbo orbs ore- oreb oreh orek oreo orer ores orhe orhs orke orko oro- oroe orok oror oros orro orrs orse orsk orso osbe osee oseh osek oser oses oshe osho oshs osoo osor osos osro ossb osse osso rbbb rbbr rbbs rbhs rboh rbss rebb rebe rebk rebo rebs reeb reek rees rehb rehe rehs reke reko reks reos rere rero rers rese resh reso ress rheb rhee rheo rhes rhhs rhob rhoh rhos rkos rkss rob- robb robe robo robs roer roes rohe rohr rohs roke rokh rokk roko rokr roks roob rook roor roos rore rork roro rose rosh roso ross rrhs rrrr rsee rshs rsos rsre s-os sbbs sber sbhk sbhs sbor sbrk sbse se-e se-h se-k se-o se-s sebe sebo sebs seeb seeh seek seer sees sehe sehk sehr sehs seke sekk seko seok serb sere serk sero serr sers sese sesh seso sess shbs she- sheb shee sheh shek sheo sher shes shhh shhs shoe shok shoo shor shos shre shrs skee skeo