b-u bbb bbe bbi bbk bbo bbs bbt bbu be- beb bee bei bek beo bes bet beu bi- bib bie bii bik bio bis bit biu bkb bke bkk bko bks bkt bob boe boi bok boo bos bot bou bsb bse bsi bsk bso bss bst bsu btb bte bti btk bto bts btt btu bub bue bui buk buo bus but buu ebb ebe ebi ebk ebo ebs ebt ebu eeb eee eek eeo ees eet eib eie eii eik eio eis eit eiu ekb eke eki eko eks ekt eku eo- eob eoe eoi eok eoo eos eot eou es- esb ese esi esk eso ess est esu etb ete eti etk eto ets ett etu eu- eub eue eui eus eut ibb ibe ibi ibk ibo ibs ibt ibu ie- iee iei iek ies iet iib iie iii iio iis iit iiu ikb ike iki ikk iko iks ikt iku io- iob ioe ioi ioo ios iot iou is- isb ise isi isk iso iss ist isu itb ite iti itk ito its itt itu iu- iub iue iui ius iut k-t kbb kbe kbi kbk kbo kbs kbu ke- keb kee kei kek keo kes ket kib kie kii kik kio kis kit kiu kkb kke kki kkk kks kkt kku kob koe koi kok koo kos kot kou ksb kse ksi ksk kso kss kst ksu ktb kte ktk kto kts ktt ktu kub kue kui kuk kus kut kuu o-i ob- obb obe obi obk obo obs obt obu oeb oee oei oeo oes oet oib oie oii oik oio ois oit oiu okb oke oki okk oko oks oku oo- oob ooi ook ooo oos oot os- osb ose osi osk oso oss ost osu ot- otb ote oti otk oto ots ott otu ou- oue oui ouk ouo ous out sbb sbe sbi sbk sbo sbs sbt sbu se- seb see sei sek seo ses set seu sib sie sii sik sio sis sit siu sk- skb ske ski skk sko sks skt sku sob soe soi sok soo sos sot sou ss- ssb sse ssi ssk sso sss sst ssu stb ste sti stk sto sts stt stu sub sue sui suk suo sus sut suu tbb tbe tbi tbk tbo tbs tbt tbu te- teb tee tei tek teo tes tet teu tib tie tii tik tio tis tit tiu tkb tke tkk tko tks tkt to- tob toe toi tok too tos tot tou tsb tse tsi tsk tso tss tst tsu ttb tte tti ttk tto tts ttt ttu tub tue tui tuk tuo tus tut tuu ubb ube ubi ubk ubo ubs ubt ubu ueb uee uei ues uet uib uie uii uio uis uit uiu ukb uke uki ukk uku uob uoe uok uoo uos uot usb use usi usk uso uss ust usu utb ute uti utk uto uts utt utu uue uus uut uuu

-ose -ous bbbb bbbs bbeb bbet bebb bebe bebi bebo beeb beek bees beet beik beis beit beke beki beko beks beo- beok beos beot bes- bese besk beso bess best bete beti beto bets bett betu beuk bibb bibe bibi bibo bibs bieb bies biet bieu biis bike biko biku bio- bioi bios biot biou bis- bise bisk biso biss bist bisu bite bito bits bitt bitu bobb bobe bobi bobo bobs bobu boee boeo boes boet boi- boie boii bois boit boiu boke boki boko boks boku boob booe book boos boot bose bosi bosk boso boss bost bosu botb bote boti boto bots bott boue bouk bous bout bseb bsee bses bset bskt bsos bsse bsts btek btie btob btss bttb btus bubb bube bubi bubo bubs bubu bueu buie buik buis buit buiu buke buki bukk buko buku buse busi busk buss bust busu but- bute buti buto buts butt buus ebbo ebbs ebes ebis ebit eboe eboo ebos ebus eeee eees eeke eeks eese eesi eesk eete eets eetu eiei eies eike eiki eiko eiks eiou eise eisk eiso eiss eist eitb eiti eito ekeb ekek ekes eket ekis ekki ekoi ekos eksi eoes eois eost eoto eots eous esbo esbs esee esek eseo eses eset esie esik esis esit eske esko esks esku eso- esok esos esse essi esso esst essu este esto ests esui esus etee etes etik etio etoe etok etos etsi etsu ette etti etto ettu etui eubi euoi euos euse i-be ibes ibet ibie ibis ibos ibot ibss ibtb ibts ibus ieet ieie ieio iesi ieso iest iesu iett iies iiie iiii iiio iiis iiit iioi iioo iios iisi iist iisu iitt ikee ikes ikki ikko ikoo iksu ikue ikuo iobi ioee ioii ioio ioit ioke ioko iooi iooo ioos ioso iosu iote ioto ious isbe isbt iseb isee iseo ises iset isie isis isit isko isku iso- isok isos isse issi isso isss issu iste isti isto ists isus itbe itbs itek ites itet itie itis itko itoi itoo itos itou itse itsi itso itsu itto iuiu iuse iuss iust k-os kbbb kbbe kbbi kbbk kbbo kbbs kbbt kbbu kbeb kbee kbek kbeo kbes kbet kbib kbie kbik kbio kbis kbit kbiu kbkb kbkk kbko kbob kboe kboi kbok kboo kbos kbot kbsb kbsi kbsk kbso kbss kbst kbsu kbtb kbte kbtk kbto kbts kbtt kbub kbue kbuk kbus kbut kbuu kebb kebe kebi kebt kebu keek kees keet keib keii keik keio keis kekb keke keki keko keks keku keok keos kesb kesi kesk keso kess kest ket- kete keti ketk keto kets kett ketu keus kibb kibe kibi kibo kibs kibt kibu kies kieu kiii kiik kiis kiit kiiu kiki kikk kiko kikt kiku kioe kioi kiok kioo kiot kiou kise kisi kisk kiso kiss kist kisu kite kiti kito kits kitt kitu kiuu kkbb kkbe kkbi kkbo kkbs kkbt kkik kkit kkkk kkob kkoo kkot kkse kksi kkss kkst kksu kktk kkts kktu kkus kkut kkuu kobb kobe kobi kobk kobo kobs kobu koei