-er bbb bbe bbk bbm bbo bbr bbs bbx be- beb bee bek bem beo ber bes bex bkb bke bkk bkm bko bkr bks bkx bmb bme bmk bmm bmo bmr bms bmx bob boe bok bom boo bor bos box brb bre brk brm bro brr brs brx bsb bse bsk bsm bso bsr bss bsx bxb bxm bxo bxx ebb ebe ebk ebm ebo ebr ebs ebx eeb eee eek eem eeo eer ees eex ekb eke eko ekr eks em- emb eme emk emm emo emr ems emx eo- eob eoe eok eom eoo eor eos erb ere erk erm ero err ers es- esb ese esk esm eso esr ess esx ex- exe exo exr exs exx kbb kbe kbk kbm kbo kbr kbs kbx ke- keb kee kek kem keo ker kes kex kkb kke kkk kkm kkr kks kmb kme kmk kmm kmo kms kob koe kok kom koo kor kos krk kro krr krs ksb kse ksk ksm kso ksr kss kxm kxo m-o m-r mbb mbe mbk mbm mbo mbr mbs mbx meb mee mek mem meo mer mes mex mkb mke mkk mkm mko mkr mks mkx mmb mme mmk mmm mmo mmr mms mmx mob moe mok mom moo mor mos mox mrb mre mrk mrm mro mrr mrs mrx msb mse msk msm mso msr mss msx mxr mxs ob- obb obe obk obm obo obr obs obx oeb oee oem oeo oer oes oex okb oke okk oko okr oks om- omb ome omm omo omr oms omx oo- oob ook oom ooo oor oos oox or- orb ore ork orm oro orr ors orx os- osb ose osk osm oso osr oss osx ox- oxb oxo oxx rbb rbe rbk rbm rbo rbr rbs rbx re- reb ree rek rem reo rer res rex rkb rke rkk rkm rko rks rmb rme rmm rmo rmr rms rmx rob roe rok rom roo ror ros rox rrb rrk rrm rrr rrs rsb rse rsk rsm rso rsr rss rsx rxr rxs sbb sbe sbk sbm sbo sbr sbs sbx se- seb see sek sem seo ser ses sex sk- skb ske skk skm sko skr sks skx smb sme smk smm smo smr sms smx sob soe sok som soo sor sos sox sr- srb sre srk srm sro srr srs srx ss- ssb sse ssk ssm sso ssr sss ssx sxm sxs xbe xbr xbx xee xem xer xes xex xkb xke xks xmk xmm xmo xmr xms xmx xok xom xoo xor xos xox xrx xsb xsm xss xxo xxx

-ose bbbb bbbs bbeb bbox bebb bebe bebo beeb beek beem beer bees beke beko beks beme beo- beok beor beos bere berk berm bero berr bers bes- bese besk besm beso bess bobb bobe bobo bobs boee boeo boer boes boke boko boks bomb bome boms boob booe book boom boor boos boox bor- bore bork borm boro borr bors bose bosk bosm boso boss breb bree brek brem breo brer bres brex brkb brob broe brok brom broo bror bros brox brrm brrr brrs brsb brsr bseb bsee bser bses bsms bsos bsrm bsse bssm ebbo ebbr ebbs eber ebes eboe eboo ebor ebos ebox ebro eeee eees eeke eeks eemo eems eero eers eese eesk ekeb ekek eker ekes ekos embe embo embr embs emek emer emes emex emks emme emms emor emos emre emrs emse emso eoes eore er-x erbb erbe ereb erem erer eres erke erks erme ermo erms erob eroe eroo eros erre erro errs erse erso esbo esbs esee esek esem eseo eser eses eske esko esks esme esmo esmr eso- esok esom esos esox esse esso exer exes exmr exo- exor exos exrx k-os kbbb kbbe kbbk kbbm kbbo kbbr kbbs kbeb kbee kbek kbeo kber kbes kbex kbkb kbkk kbko kbkr kbmb kbme kbmo kbmr kbms kbmx kbob kboe kbok kboo kbos kbox kbrb kbre kbrk kbro kbrx kbsb kbsk kbsm kbso kbsr kbss kbsx kbxb kbxr kbxs kbxx kebb kebe kebr keek keem keer kees kekb keke keko keks kemb keme kemm kemo kemr kems kemx keok keom keos ker- kerb kere kerk kerm kero kerr kers kerx kesb kesk keso kesr kess kexb kexo kexs kexx kkbb kkbe kkbo kkbr kkbs kkex kkkk kkmk kkmo kkmr kkms kkmx kkob kkoo kkor kkrb kkre kkrk kkro kkrr kkrs kkrx kkse kksm kksr kkss kkxk kkxs kkxx kmbr kmbs kmbx kmem kmeo kmer kmke kmkk kmko kmks kmkx kmme kmmk kmmm kmmo kmmr kmms kmmx kmob kmoe kmok kmom kmor kmox kmrb kmro kmrr kmrs kmrx kmsb kmse kmso kmsr kmss kmxb kmxk kmxm kmxo kmxr kmxs kmxx kobb kobe kobk kobo kobr kobs koes kokb koke kokk koko kokr koks kokx komb kome komo komr koms komx koob kook kooo koor koos korb kore kork koro korr kors kos- kosb kose koso kosr koss koxe koxr krbb krbe krbk krbm krbr krbx kreb kree krek krem kreo kres krex krke krkk krko krkr krks krkx krmb krme krmo krmr krms krmx krob kroe krok krom kroo kror kros krox krrb krre krrk krrm krro krrr krrs krrx krse krsk krsr krss krsx krxb krxk krxo krxr krxx ksbr ksbs ksee ksek ksem kseo kser ksex kskb kske kskk ksko kskr ksks kskx ksmb ksme ksmm ksmo ksmr ksms ksmx ksob ksok ksom ksoo ksor ksos ksox ksrb ksrm ksro ksrr ksrs ksrx ksse kssm ksso kssr ksss kssx kxbr kxbx kxeo kxex kxkk kxks kxkx kxmb kxmr kxms kxmx kxok kxoo kxor kxos kxox kxrb kxre kxrk kxro kxrr kxrs kxrx kxsb kxse kxsm kxss kxxe kxxk kxxm kxxo kxxr kxxx mbbs mbes mbms mbox mbrs mebe mebo meek meem meer mees meke meko meme memo memr mems memx meok meor meos mer- merb mere merk merm mero mers mes- mese meso mesr mess mexx mker mkks mksm mmes mmmm mmms mmor mmse mmxx mobb mobe mobo mobs moes moex moke moko mome momo moms