b-p bbb bbe bbi bbk bbo bbp bbs bbt be- beb bee bei bek beo bep bes bet bi- bib bie bii bik bio bip bis bit bkb bke bkk bko bkp bks bkt bob boe boi bok boo bop bos bot bpb bpe bpi bpo bpp bps bpt bsb bse bsi bsk bso bsp bss bst btb bte bti btk bto btp bts btt ebb ebe ebi ebk ebo ebp ebs ebt eeb eee eek eeo eep ees eet eib eie eii eik eio eip eis eit ekb eke eki eko ekp eks ekt eo- eob eoe eoi eok eoo eop eos eot ep- epb epe epi epo epp eps ept es- esb ese esi esk eso esp ess est etb ete eti etk eto etp ets ett ibb ibe ibi ibk ibo ibp ibs ibt ie- iee iei iek iep ies iet iib iie iii iio iip iis iit ikb ike iki ikk iko iks ikt io- iob ioe ioi ioo iop ios iot ipb ipe ipi ipo ipp ips ipt is- isb ise isi isk iso isp iss ist itb ite iti itk ito itp its itt k-t kbb kbe kbi kbk kbo kbp kbs ke- keb kee kei kek keo kep kes ket kib kie kii kik kio kip kis kit kkb kke kki kkk kkp kks kkt kob koe koi kok koo kop kos kot kpe kpi kpk kpo kpp kps kpt ksb kse ksi ksk kso ksp kss kst ktb kte ktk kto ktp kts ktt o-i ob- obb obe obi obk obo obp obs obt oeb oee oei oeo oep oes oet oib oie oii oik oio oip ois oit okb oke oki okk oko okp oks oo- oob ooi ook ooo oop oos oot op- opb ope opi opk opo opp ops opt os- osb ose osi osk oso osp oss ost ot- otb ote oti otk oto otp ots ott p-p pbb pbe pbi pbk pbo pbp pbs pbt peb pee pei pek peo pep pes pet pib pie pii pik pio pip pis pit pkb pke pki pko pkp pks pkt pob poe poi pok poo pop pos pot ppb ppe ppi ppk ppo ppp pps ppt ps- psb pse psi psk pso psp pss pst pt- ptb pte pti ptk pto ptp pts ptt sbb sbe sbi sbk sbo sbp sbs sbt se- seb see sei sek seo sep ses set sib sie sii sik sio sip sis sit sk- skb ske ski skk sko skp sks skt sob soe soi sok soo sop sos sot spb spe spi spk spo spp sps spt ss- ssb sse ssi ssk sso ssp sss sst stb ste sti stk sto stp sts stt tbb tbe tbi tbk tbo tbp tbs tbt te- teb tee tei tek teo tep tes tet tib tie tii tik tio tip tis tit tkb tke tkk tko tkp tks tkt to- tob toe toi tok too top tos tot tpb tpe tpi tpk tpo tpp tps tpt tsb tse tsi tsk tso tsp tss tst ttb tte tti ttk tto ttp tts ttt

-ose bbbb bbbs bbeb bbet bebb bebe bebi bebo beeb beek beep bees beet beik beis beit beke beki beko beks beo- beok beos beot bepo bes- bese besk beso bess best bete beti beto bets bett bibb bibe bibi bibo bibs bieb bies biet biis bike biko bio- bioi bios biot bipp bips bis- bise bisk biso bisp biss bist bite bito bits bitt bkpt bksp bobb bobe bobi bobo bobs boee boeo boep boes boet boi- boie boii bois boit boke boki boko boks boob booe book boop boos boot bope bopp bops bose bosi bosk boso boss bost botb bote boti boto bots bott bpoe bpot bpti bseb bsee bses bset bskt bsos bspp bsse bsts btbp btek btie btob btps btss bttb ebbo ebbs ebes ebis ebit eboe eboo ebos ebpo eeee eees eeke eeks eeps eese eesi eesk eete eets eiei eies eike eiki eiko eiks eipo eise eisk eiso eiss eist eitb eiti eito ekeb ekek ekes eket ekis ekki ekoi ekos ekpe ekpo eksi eoes eois eost eoto eots epee epes epi- epie epik epip epis epit epos epot eppo eppp epps epsi epsp epss epte esbo esbs esee esek eseo eses eset esie esik esis esit eske esko esks eso- esok esop esos espe espi espo espp esps esse essi esso essp esst este esto estp ests etee etes etik etio etoe etok etos etsi ette etti etto i-be ibes ibet ibie ibis ibos ibot ibss ibtb ibts ieet ieie ieio iesi ieso iest iett iies iiie iiii iiio iiis iiit iioi iioo iiop iios iisi iisp iist iitt ikee ikes ikki ikko ikoo iobi ioee ioii ioio ioit ioke ioko iooi iooo ioos iops ioso iote ioto ipbk ipek ipes ipet ipie ipko ipoe ipop ipos ippo ipse ipsi ipso ipsp ipss ipto ipts isbe isbt iseb isee iseo isep ises iset isie isis isit isko iso- isok isop isos ispe isps isse issi isso issp isss iste isti isto istp ists itbe itbs itek itep ites itet itie itis itko itoi itoo itos itse itsi itso itsp itto k-os kbbb kbbe kbbi kbbk kbbo kbbs kbbt kbeb kbee kbek kbeo kbes kbet kbib kbie kbik kbio kbis kbit kbkb kbkk kbko kbob kboe kboi kbok kboo kbos kbot kbpe kbpi kbpk kbpo kbps kbpt kbsb kbsi kbsk kbso kbss kbst kbtb kbte kbtk kbto kbts kbtt kebb kebe kebi kebt keek keep kees keet keib keii keik keio keis kekb keke keki keko keks keok keos kep- kepe kepi keps kept kesb kesi kesk keso kesp kess kest ket- kete keti ketk keto ketp kets kett kibb kibe kibi kibo kibs kibt kies kiii kiik kiip kiis kiit kiki kikk kiko kikt kioe kioi kiok kioo kiot kip- kipe kipi kipo kipp kips kipt kise kisi kisk kiso kiss kist kite kiti kito kits kitt kkbb kkbe kkbi kkbo kkbs kkbt kkik kkit