-ol bbb bbi bbk bbl bbo bbr bbs bbt bi- bib bii bik bil bio bir bis bit bkb bkk bkl bko bkr bks bkt blb bli blk bll blo blr bls blt bob boi bok bol boo bor bos bot brb bri brk brl bro brr brs brt bsb bsi bsk bsl bso bsr bss bst btb bti btk btl bto btr bts btt ibb ibi ibk ibl ibo ibr ibs ibt iib iii iil iio iir iis iit ikb iki ikk ikl iko ikr iks ikt il- ilb ili ilk ill ilo ilr ils ilt io- iob ioi iol ioo ior ios iot ir- irb iri irk irl iro irr irs irt is- isb isi isk isl iso isr iss ist itb iti itk itl ito its itt k-t kbb kbi kbk kbl kbo kbr kbs kib kii kik kil kio kir kis kit kkb kki kkk kkl kkr kks kkt kl- klb kli klo klr kls klt kob koi kok kol koo kor kos kot kri krk krl kro krr krs krt ksb ksi ksk ksl kso ksr kss kst ktb ktk ktl kto ktr kts ktt lbb lbi lbk lbl lbo lbr lbs lbt lib lii lik lil lio lir lis lit lkb lkl lkr lks lkt llb lli llk lll llo llr lls llt lob loi lok lol loo lor los lot lrb lri lrk lro lrr lrs lrt lsb lsi lsk lsl lso lsr lss lst ltb lti ltk ltl lto ltr lts ltt o-i ob- obb obi obk obl obo obr obs obt oib oii oik oil oio oir ois oit okb oki okk okl oko okr oks olb oli olk oll olo ols olt oo- oob ooi ook ool ooo oor oos oot or- orb ori ork orl oro orr ors ort os- osb osi osk osl oso osr oss ost ot- otb oti otk otl oto otr ots ott rbb rbi rbk rbl rbo rbr rbs rbt rib rii rik ril rio rir ris rit rkb rkk rko rks rkt rli rll rlo rlr rls rlt rob roi rok rol roo ror ros rot rrb rri rrk rrl rrr rrs rrt rsb rsi rsk rsl rso rsr rss rst rtb rti rtk rtl rto rtr rts rtt sbb sbi sbk sbl sbo sbr sbs sbt sib sii sik sil sio sir sis sit sk- skb ski skk skl sko skr sks skt slb sli slk sll slo slr sls slt sob soi sok sol soo sor sos sot sr- srb sri srk srl sro srr srs srt ss- ssb ssi ssk ssl sso ssr sss sst stb sti stk stl sto str sts stt tbb tbi tbk tbl tbo tbr tbs tbt tib tii tik til tio tir tis tit tkb tkk tkl tko tkr tks tkt tli tlk tll tlo tlr tls tlt to- tob toi tok tol too tor tos tot trb tri trk trl tro trr trs trt tsb tsi tsk tsl tso tsr tss tst ttb tti ttk ttl tto ttr tts ttt

bbbb bbbs bblb bbls bibb bibi bibl bibo bibs biis biko bili bilk bill bilo bils bilt bio- bioi biol bios biot birb biri birk birl biro birr birs birt bis- bisk bisl biso biss bist bito bits bitt blbt blik blio blir blis blit blkb blls blob blok bloo blot blss blst blts bobb bobi bobo bobs boi- boii boil bois boit boki boko boks boli bolk boll bolo bols bolt boob book bool boor boos boot bor- bori bork boro borr bors bort bosi bosk boso boss bost botb boti boto bots bott brik bril brio bris brit brkb brls brob brok brol broo bror bros brot brrr brrs brsb brsr brst bskt bsos bsts btob btor btrt btss bttb ibis ibos ibot ibri ibro ibss ibtb ibtl ibts iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iitr iitt ikki ikko ikoo ikri ilio ilir ilis ilit ilki ilks ill- illi illo ills illt ilok iloo ilos ilot ilts iobi ioii ioio ioit ioko iolo iooi iooo ioos iori iors ioso ioto iri- iril irio iris irki irks irlb irob irri irrs irti irts isbl isbt isil isis isit isko isls iso- isok isol isor isos isri issi isso issr isss isti isto istr ists itbs itil itis itko itll itoi itol itoo itor itos itri itrs itsi itso itto k-lo k-os kbbb kbbi kbbk kbbl kbbo kbbr kbbs kbbt kbib kbik kbil kbio kbis kbit kbkb kbkk kbkl kbko kbkr kblb kbll kblo kblr kbls kblt kbob kboi kbok kboo kbos kbot kbrb kbri kbrk kbrl kbro kbrt kbsb kbsi kbsk kbso kbsr kbss kbst kbtb kbtk kbtl kbto kbtr kbts kbtt kibb kibi kibl kibo kibr kibs kibt kiii kiik kiis kiit kiki kikk kiko kikr kikt kilb kili kilk kill kilo kilr kilt kioi kiok kiol kioo kiot kirb kiri kirk kiro kirr kirs kirt kisi kisk kisl kiso kisr kiss kist kiti kitl kito kitr kits kitt kkbb kkbi kkbl kkbo kkbr kkbs kkbt kkik kkit kkkk kklb kkli kkll kklo kkls kkob kkol kkoo kkor kkot kkrb kkrk kkrl kkro kkrr kkrs kkrt kksi kksr kkss kkst kktk kktl kkts klbb klbl klbs klbt klib klik klil klio klir klis klit klkk klkl klko klkr klks kllb kllk klls klob klok klol kloo klor klos klrk klrr klrs klsi klsr klst klti kltk klto kltr kltt kobb kobi kobk kobo kobr kobs koii koil koir koit kokb koki kokk koko kokr koks kolb koli kolk koll kolo kolr kols kolt koob kooi kook kool kooo koor koos koot korb kori kork korl koro korr kors kort kos- kosb kosi koso kosr koss kost kotb koti kotk koto kotr kots kott krbb krbi krbk krbl krbr krbt krib krik kril krio kris krit krki krkk krko krkr krks krlt krob kroi krok krol kroo kror kros krrb krri krrk krrl krro krrr krrs krrt krsk krsl krsr krss krst krti krtk krto krtr krts ksbi