-ol bbb bbi bbk bbl bbo bbr bbs bi- bib bii bik bil bio bir bis bkb bkk bkl bko bkr bks blb bli blk bll blo blr bls bob boi bok bol boo bor bos brb bri brk brl bro brr brs bsb bsi bsk bsl bso bsr bss ibb ibi ibk ibl ibo ibr ibs iib iii iil iio iir iis ikb iki ikk ikl iko ikr iks il- ilb ili ilk ill ilo ilr ils io- iob ioi iol ioo ior ios ir- irb iri irk irl iro irr irs is- isb isi isk isl iso isr iss kbb kbi kbk kbl kbo kbr kbs kib kii kik kil kio kir kis kkb kki kkk kkl kkr kks kl- klb kli klo klr kls kob koi kok kol koo kor kos kri krk krl kro krr krs ksb ksi ksk ksl kso ksr kss lbb lbi lbk lbl lbo lbr lbs lib lii lik lil lio lir lis lkb lkl lkr lks llb lli llk lll llo llr lls lob loi lok lol loo lor los lrb lri lrk lro lrr lrs lsb lsi lsk lsl lso lsr lss o-i ob- obb obi obk obl obo obr obs oib oii oik oil oio oir ois okb oki okk okl oko okr oks olb oli olk oll olo ols oo- oob ooi ook ool ooo oor oos or- orb ori ork orl oro orr ors os- osb osi osk osl oso osr oss rbb rbi rbk rbl rbo rbr rbs rib rii rik ril rio rir ris rkb rkk rko rks rli rll rlo rlr rls rob roi rok rol roo ror ros rrb rri rrk rrl rrr rrs rsb rsi rsk rsl rso rsr rss sbb sbi sbk sbl sbo sbr sbs sib sii sik sil sio sir sis sk- skb ski skk skl sko skr sks slb sli slk sll slo slr sls sob soi sok sol soo sor sos sr- srb sri srk srl sro srr srs ss- ssb ssi ssk ssl sso ssr sss

bbbb bbbs bblb bbls bibb bibi bibl bibo bibs biis biko bili bilk bill bilo bils bio- bioi biol bios birb biri birk birl biro birr birs bis- bisk bisl biso biss blik blio blir blis blkb blls blob blok bloo blss bobb bobi bobo bobs boi- boii boil bois boki boko boks boli bolk boll bolo bols boob book bool boor boos bor- bori bork boro borr bors bosi bosk boso boss brik bril brio bris brkb brls brob brok brol broo bror bros brrr brrs brsb brsr bsos ibis ibos ibri ibro ibss iiii iiio iiis iioi iioo iios iirs iisi iisr ikki ikko ikoo ikri ilio ilir ilis ilki ilks ill- illi illo ills ilok iloo ilos iobi ioii ioio ioko iolo iooi iooo ioos iori iors ioso iri- iril irio iris irki irks irlb irob irri irrs isbl isil isis isko isls iso- isok isol isor isos isri issi isso issr isss k-lo k-os kbbb kbbi kbbk kbbl kbbo kbbr kbbs kbib kbik kbil kbio kbis kbkb kbkk kbkl kbko kbkr kblb kbll kblo kblr kbls kbob kboi kbok kboo kbos kbrb kbri kbrk kbrl kbro kbsb kbsi kbsk kbso kbsr kbss kibb kibi kibl kibo kibr kibs kiii kiik kiis kiki kikk kiko kikr kilb kili kilk kill kilo kilr kioi kiok kiol kioo kirb kiri kirk kiro kirr kirs kisi kisk kisl kiso kisr kiss kkbb kkbi kkbl kkbo kkbr kkbs kkik kkkk kklb kkli kkll kklo kkls kkob kkol kkoo kkor kkrb kkrk kkrl kkro kkrr kkrs kksi kksr kkss klbb klbl klbs klib klik klil klio klir klis klkk klkl klko klkr klks kllb kllk klls klob klok klol kloo klor klos klrk klrr klrs klsi klsr kobb kobi kobk kobo kobr kobs koii koil koir kokb koki kokk koko kokr koks kolb koli kolk koll kolo kolr kols koob kooi kook kool kooo koor koos korb kori kork korl koro korr kors kos- kosb kosi koso kosr koss krbb krbi krbk krbl krbr krib krik kril krio kris krki krkk krko krkr krks krob kroi krok krol kroo kror kros krrb krri krrk krrl krro krrr krrs krsk krsl krsr krss ksbi ksbl ksbr ksbs ksib ksii ksik ksil ksir ksis kskb kskk ksko kskr ksks kslb ksli kslk ksll kslo kslr ksob ksoi ksok ksol ksoo ksor ksos ksrb ksro ksrr ksrs kssi kssl ksso kssr ksss lblr lbos lbrs libo libr libs liii liir liis liko lilb lili lill lilo lils lio- lior lios liri lirk lirl liro lirr lirs lisi lisk liso liss lkrs llbs llks llll lloo lob- lobb lobi lobo lobs loik loir lois loki lokk loko loli loll lolo lols loob look lool loor loos lori lork loro lors losi loso loss lroi lrrr ls-r lsso lssr obbo obis obkb obls oboi obok obol obor obos obri obro obsr obss oiii oiko oiks oils oios okir okko oklo okok okol okor okro oksi okso olbo olib olio olis olki olli ollo olor olos olsi oobi oolo oooo ooos oosi orbb orbi orbo orbs ori- oril orio oris orko orlo oro- orok oror oros orri orro orrs orsi orsk orso osii osik osis oski osli oslo osoi osoo osor osos osro ossb ossi osso rbbb rbbr rbbs rbis rbsl rbss rib- ribo ribs riis riki rikk rill rilo riol rios riri rirs risi risk riso riss rkos rkss rlls rob- robb robi robo robs roik roil roio roir rois roki rokk roko rokr roks rolk roll rolo roob rooi rook rool roor roos rori rork roro rosi roso ross rrrr rsbi rsis rsos rssl s-ib s-ii s-os sbbs sbor sbrk sbsi sibi sibo sibs siik siki siko sikr siks sil- sili silk sill silo sils siol sior sios siri sirk siro sirr sirs sisi sisk siss skik skil skio skir skis skol skor skss sl-i slib slik slir slob sloo slos slrs sobo sobr sobs soik soil soir sois soki sokk soko soli solk soll solo