-ol b-u bbb bbi bbk bbl bbo bbs bbt bbu bi- bib bii bik bil bio bis bit biu bkb bkk bkl bko bks bkt blb bli blk bll blo bls blt blu bob boi bok bol boo bos bot bou bsb bsi bsk bsl bso bss bst bsu btb bti btk btl bto bts btt btu bub bui buk bul buo bus but buu ibb ibi ibk ibl ibo ibs ibt ibu iib iii iil iio iis iit iiu ikb iki ikk ikl iko iks ikt iku il- ilb ili ilk ill ilo ils ilt ilu io- iob ioi iol ioo ios iot iou is- isb isi isk isl iso iss ist isu itb iti itk itl ito its itt itu iu- iub iui ius iut k-t kbb kbi kbk kbl kbo kbs kbu kib kii kik kil kio kis kit kiu kkb kki kkk kkl kks kkt kku kl- klb kli klo kls klt klu kob koi kok kol koo kos kot kou ksb ksi ksk ksl kso kss kst ksu ktb ktk ktl kto kts ktt ktu kub kui kuk kul kus kut kuu lbb lbi lbk lbl lbo lbs lbt lbu lib lii lik lil lio lis lit liu lkb lkl lks lkt llb lli llk lll llo lls llt llu lob loi lok lol loo los lot lou lsb lsi lsk lsl lso lss lst lsu ltb lti ltk ltl lto lts ltt ltu lub lui luk lul luo lus lut luu o-i ob- obb obi obk obl obo obs obt obu oib oii oik oil oio ois oit oiu okb oki okk okl oko oks oku olb oli olk oll olo ols olt olu oo- oob ooi ook ool ooo oos oot os- osb osi osk osl oso oss ost osu ot- otb oti otk otl oto ots ott otu ou- oui ouk oul ouo ous out sbb sbi sbk sbl sbo sbs sbt sbu sib sii sik sil sio sis sit siu sk- skb ski skk skl sko sks skt sku slb sli slk sll slo sls slt slu sob soi sok sol soo sos sot sou ss- ssb ssi ssk ssl sso sss sst ssu stb sti stk stl sto sts stt stu sub sui suk sul suo sus sut suu tbb tbi tbk tbl tbo tbs tbt tbu tib tii tik til tio tis tit tiu tkb tkk tkl tko tks tkt tli tlk tll tlo tls tlt tlu to- tob toi tok tol too tos tot tou tsb tsi tsk tsl tso tss tst tsu ttb tti ttk ttl tto tts ttt ttu tub tui tuk tul tuo tus tut tuu ubb ubi ubk ubl ubo ubs ubt ubu uib uii uil uio uis uit uiu ukb uki ukk ukl uku ulb uli ulk ull ulo uls ult ulu uob uok uol uoo uos uot usb usi usk usl uso uss ust usu utb uti utk utl uto uts utt utu uus uut uuu

-ous bbbb bbbs bblb bbls bibb bibi bibl bibo bibs biis biko biku bili bilk bill bilo bils bilt bilu bio- bioi biol bios biot biou bis- bisk bisl biso biss bist bisu bito bits bitt bitu blbt blik blio blis blit blkb blls blob blok bloo blot blou blss blst blts blub blus blut bobb bobi bobo bobs bobu boi- boii boil bois boit boiu boki boko boks boku boli bolk boll bolo bols bolt bolu boob book bool boos boot bosi bosk boso boss bost bosu botb boti boto bots bott bouk boul bous bout bskt bsos bsts btob btss bttb btus bubb bubi bubo bubs bubu buik buis buit buiu buki bukk buko buku bulb buli bulk bull buls bult bulu buol busi busk buss bust busu but- buti buto buts butt buus ibis ibos ibot ibss ibtb ibtl ibts ibus iiii iiio iiis iiit iioi iioo iios iisi iist iisu iitt ikki ikko ikoo iksu ikuo ilio ilis ilit ilki ilks ilku ill- illi illo ills illt ilok iloo ilos ilot ilts ilus ilut iobi ioii ioio ioit ioko iolo iooi iooo ioos ioso iosu ioto ious isbl isbt isil isis isit isko isku isls iso- isok isol isos issi isso isss issu isti isto ists isus itbs itil itis itko itll itoi itol itoo itos itou itsi itso itsu itto iuiu iuss iust k-lo k-os kbbb kbbi kbbk kbbl kbbo kbbs kbbt kbbu kbib kbik kbil kbio kbis kbit kbiu kbkb kbkk kbkl kbko kblb kbll kblo kbls kblt kblu kbob kboi kbok kboo kbos kbot kbsb kbsi kbsk kbso kbss kbst kbsu kbtb kbtk kbtl kbto kbts kbtt kbub kbuk kbul kbus kbut kbuu kibb kibi kibl kibo kibs kibt kibu kiii kiik kiis kiit kiiu kiki kikk kiko kikt kiku kilb kili kilk kill kilo kilt kioi kiok kiol kioo kiot kiou kisi kisk kisl kiso kiss kist kisu kiti kitl kito kits kitt kitu kiul kiuu kkbb kkbi kkbl kkbo kkbs kkbt kkik kkit kkkk kklb kkli kkll kklo kkls kkob kkol kkoo kkot kksi kkss kkst kksu kktk kktl kkts kktu kkus kkut kkuu klbb klbl klbs klbt klbu klib klik klil klio klis klit kliu klkk klkl klko klks kllb kllk klls klob klok klol kloo klos klou klsi klst klsu klti kltk klto kltt klub kluk kluu kobb kobi kobk kobo kobs kobu koii koil koit kokb koki kokk koko koks koku kolb koli kolk koll kolo kols kolt kolu koob kooi kook kool kooo koos koot koou kos- kosb kosi koso koss kost kosu kotb koti kotk koto kots kott kotu koub koui koul kous kout kouu ksbi ksbl ksbs ksib ksii ksik ksil ksis ksit kskb kskk ksko ksks ksku kslb ksli kslk ksll kslo kslt kslu ksob ksoi ksok ksol ksoo ksos ksou kssi kssl ksso ksss ksst kssu kstb ksti kstk kstl ksto ksts kstt kstu ksub ksui ksut ksuu ktbb ktbl ktbt ktbu ktib ktik ktil ktis ktkb ktkk ktko ktks ktkt ktku ktlb ktli ktlk ktlo ktlt ktlu ktob