-er -ol bbb bbe bbk bbl bbo bbr bbs be- beb bee bek bel beo ber bes bev bkb bke bkk bkl bko bkr bks bkv blb ble blk bll blo blr bls blv bob boe bok bol boo bor bos bov brb bre brk brl bro brr brs brv bsb bse bsk bsl bso bsr bss bsv bvb bve bvk bvl bvo bvr bvs bvv ebb ebe ebk ebl ebo ebr ebs ebv eeb eee eek eel eeo eer ees eev ekb eke ekl eko ekr eks ekv elb ele elk ell elo elr els elv eo- eob eoe eok eol eoo eor eos erb ere erk erl ero err ers erv es- esb ese esk esl eso esr ess esv evb eve evl evo evr evs evv kbb kbe kbk kbl kbo kbr kbs ke- keb kee kek kel keo ker kes kev kkb kke kkk kkl kkr kks kkv kl- klb klo klr kls klv kob koe kok kol koo kor kos krk krl kro krr krs krv ksb kse ksk ksl kso ksr kss ksv kvb kvk kvo kvr kvs kvv lbb lbe lbk lbl lbo lbr lbs lbv leb lee lek lel leo ler les lev lkb lkl lkr lks llb lle llk lll llo llr lls llv lob loe lok lol loo lor los lov lrb lrk lro lrr lrs lrv lsb lse lsk lsl lso lsr lss lsv lvb lve lvl lvr lvs lvv ob- obb obe obk obl obo obr obs obv oeb oee oel oeo oer oes okb oke okk okl oko okr oks olb ole olk oll olo ols oo- oob ook ool ooo oor oos oov or- orb ore ork orl oro orr ors orv os- osb ose osk osl oso osr oss osv ov- ovb ove ovl ovo ovs ovv rbb rbe rbk rbl rbo rbr rbs re- reb ree rek rel reo rer res rev rkb rke rkk rko rks rkv rle rll rlo rlr rls rob roe rok rol roo ror ros rov rrb rrk rrl rrr rrs rsb rse rsk rsl rso rsr rss rsv rvb rve rvl rvo rvr rvs rvv sbb sbe sbk sbl sbo sbr sbs sbv se- seb see sek sel seo ser ses sev sk- skb ske skk skl sko skr sks slb sle slk sll slo slr sls slv sob soe sok sol soo sor sos sov sr- srb sre srk srl sro srr srs srv ss- ssb sse ssk ssl sso ssr sss ssv svb sve svk svl svo svr svs svv v-e vbk vbl vbo vbr vbs vbv veb vee vek vel veo ver ves vkb vl- vlb vle vlk vll vlo vls vlv vob voe vok vol voo vor vos vov vrb vre vrk vrr vrs vsb vse vsk vsl vso vsr vss vsv vvb vvo vvr vvs vvv

-ose bbbb bbbs bbeb bblb bbls bebb bebe bebo beeb beek beel beer bees beke beko beks bele belk bell belo bels beo- beok beor beos bere berk bero berr bers bes- bese besk beso bess bevo bevs bleb blee blek bleo bles blkb blls blob blok bloo blss bobb bobe bobo bobs boee boel boeo boer boes boke boko boks bole bolk boll bolo bols boob booe book bool boor boos bor- bore bork boro borr bors bose bosk boso boss bove bovo breb bree brek brel breo brer bres brev brkb brls brob broe brok brol broo bror bros brrr brrs brsb brsr bseb bsee bser bses bsos bsse ebbo ebbr ebbs ebel eber ebes eboe ebol eboo ebor ebos ebro eeee eees eeke eeks eele eels eelv eero eers eese eesk ekeb ekek eker ekes ekos el-b elbe elbo elee elek eleo eler eles elev elke elko elks elle ello ells elok elos elro else elso elve elvo eoes eole eolo eore eorl erbb erbe ereb erel erer eres erev erke erks erle erll erob eroe erol eroo eros erre erro errs erse erso erve esbo esbs esee esek esel eseo eser eses eske esko esks eso- esok esol esos esse essl esso evel ever eves evoe evol evoo evos evre evrs evvk k-lo k-os kbbb kbbe kbbk kbbl kbbo kbbr kbbs kbeb kbee kbek kbel kbeo kber kbes kbev kbkb kbkk kbkl kbko kbkr kbkv kblb kble kbll kblo kblr kbls kblv kbob kboe kbok kboo kbos kbov kbrb kbre kbrk kbrl kbro kbrv kbsb kbsk kbso kbsr kbss kbsv kbvb kbvo kbvr kebb kebe kebr keek keel keer kees kekb keke kekl keko keks kele kelk kell kelo keok keol keos ker- kerb kere kerk kerl kero kerr kers kerv kesb kesk keso kesr kess keve kevs kkbb kkbe kkbl kkbo kkbr kkbs kkkk kklb kkll kklo kkls kklv kkob kkol kkoo kkor kkov kkrb kkre kkrk kkrl kkro kkrr kkrs kkrv kkse kksr kkss kkvr kkvv klbb klbe klbl klbs kleb klee klek kleo kler kles klkk klkl klko klkr klks klkv kllb klle kllk klls kllv klob kloe klok klol kloo klor klos klov klrk klrr klrs klse klsr klsv klvb klve klvk klvl klvo klvs klvv kobb kobe kobk kobo kobr kobs koel koes kokb koke kokk koko kokr koks kolb kole kolk koll kolo kolr kols kolv koob kook kool kooo koor koos koov korb kore kork korl koro korr kors korv kos- kosb kose koso kosr koss kove kovk kovo kovr krbb krbe krbk krbl krbr kreb kree krek kreo kres krev krke krkk krko krkr krks krkv krle krlv krob kroe krok krol kroo kror kros krov krrb krre krrk krrl krro krrr krrs krse krsk krsl krsr krss krsv krvb krve krvk krvl krvo krvr krvs krvv ksbl ksbr ksbs ksbv ksee ksek ksel kseo kser ksev kskb kske kskk ksko kskr ksks kslb ksle kslk ksll kslo kslr kslv ksob ksok ksol ksoo ksor ksos ksrb ksro ksrr ksrs ksrv ksse kssl ksso kssr ksss ksve ksvl ksvr kvbl kvbr kvel kver kves kvkl kvlb kvle kvlo kvlr kvlv kvob kvoe kvok kvol kvoo