-er -ol bbb bbe bbi bbk bbl bbo bbr bbs be- beb bee bei bek bel beo ber bes bev bi- bib bie bii bik bil bio bir bis biv bkb bke bkk bkl bko bkr bks bkv blb ble bli blk bll blo blr bls blv bob boe boi bok bol boo bor bos bov brb bre bri brk brl bro brr brs brv bsb bse bsi bsk bsl bso bsr bss bsv bvb bve bvi bvk bvl bvo bvr bvs bvv ebb ebe ebi ebk ebl ebo ebr ebs ebv eeb eee eek eel eeo eer ees eev eib eie eii eik eil eio eir eis eiv ekb eke eki ekl eko ekr eks ekv elb ele eli elk ell elo elr els elv eo- eob eoe eoi eok eol eoo eor eos erb ere eri erk erl ero err ers erv es- esb ese esi esk esl eso esr ess esv evb eve evi evl evo evr evs evv i-v ibb ibe ibi ibk ibl ibo ibr ibs ibv ie- iee iei iek iel ier ies iev iib iie iii iil iio iir iis ikb ike iki ikk ikl iko ikr iks ikv il- ilb ile ili ilk ill ilo ilr ils ilv io- iob ioe ioi iol ioo ior ios iov ir- irb ire iri irk irl iro irr irs irv is- isb ise isi isk isl iso isr iss isv ivb ive ivi ivl ivo ivr ivs ivv kbb kbe kbi kbk kbl kbo kbr kbs ke- keb kee kei kek kel keo ker kes kev kib kie kii kik kil kio kir kis kiv kkb kke kki kkk kkl kkr kks kkv kl- klb kli klo klr kls klv kob koe koi kok kol koo kor kos kri krk krl kro krr krs krv ksb kse ksi ksk ksl kso ksr kss ksv kvb kvi kvk kvo kvr kvs kvv lbb lbe lbi lbk lbl lbo lbr lbs lbv leb lee lei lek lel leo ler les lev lib lie lii lik lil lio lir lis liv lkb lkl lkr lks llb lle lli llk lll llo llr lls llv lob loe loi lok lol loo lor los lov lrb lri lrk lro lrr lrs lrv lsb lse lsi lsk lsl lso lsr lss lsv lvb lve lvi lvl lvr lvs lvv o-i ob- obb obe obi obk obl obo obr obs obv oeb oee oei oel oeo oer oes oib oie oii oik oil oio oir ois oiv okb oke oki okk okl oko okr oks olb ole oli olk oll olo ols oo- oob ooi ook ool ooo oor oos oov or- orb ore ori ork orl oro orr ors orv os- osb ose osi osk osl oso osr oss osv ov- ovb ove ovi ovl ovo ovs ovv rbb rbe rbi rbk rbl rbo rbr rbs re- reb ree rei rek rel reo rer res rev rib rie rii rik ril rio rir ris riv rkb rke rkk rko rks rkv rle rli rll rlo rlr rls rob roe roi rok rol roo ror ros rov rrb rri rrk rrl rrr rrs rsb rse rsi rsk rsl rso rsr rss rsv rvb rve rvi rvl rvo rvr rvs rvv sbb sbe sbi sbk sbl sbo sbr sbs sbv se- seb see sei sek sel seo ser ses sev sib sie sii sik sil sio sir sis siv sk- skb ske ski skk skl sko skr sks slb sle sli slk sll slo slr sls slv sob soe soi sok sol soo sor sos sov sr- srb sre sri srk srl sro srr srs srv ss- ssb sse ssi ssk ssl sso ssr sss ssv svb sve svi svk svl svo svr svs svv v-e vbi vbk vbl vbo vbr vbs vbv veb vee vei vek vel veo ver ves vi- vib vie vii vik vil vio vir vis viv vkb vl- vlb vle vlk vll vlo vls vlv vob voe voi vok vol voo vor vos vov vrb vre vri vrk vrr vrs vsb vse vsi vsk vsl vso vsr vss vsv vvb vvi vvo vvr vvs vvv

-ose bbbb bbbs bbeb bblb bbls bebb bebe bebi bebo beeb beek beel beer bees beik beil beir beis beke beki beko beks bele beli belk bell belo bels beo- beok beor beos bere beri berk bero berr bers bes- bese besk beso bess bevo bevs bibb bibe bibi bibl bibo bibs bieb biel bier bies biis bike biko bile bili bilk bill bilo bils bio- bioi biol bios birb bire biri birk birl biro birr birs bis- bise bisk bisl biso biss bive bivi bivl bleb blee blei blek bleo bles blik blio blir blis blkb blls blob blok bloo blss bobb bobe bobi bobo bobs boee boel boeo boer boes boi- boie boii boil bois boke boki boko boks bole boli bolk boll bolo bols boob booe book bool boor boos bor- bore bori bork boro borr bors bose bosi bosk boso boss bove bovi bovo breb bree brei brek brel breo brer bres brev brie brik bril brio bris brkb brls brob broe brok brol broo bror bros brrr brrs brsb brsr brvi bseb bsee bser bses bsos bsse ebbo ebbr ebbs ebel eber ebes ebis ebli eboe ebol eboo ebor ebos ebro eeee eees eeke eeks eele eels eelv eero eers eese eesi eesk eiei eier eies eike eiki eiko eiks eile eire eirs eise eisk eiso eiss ekeb ekek eker ekes ekis ekki ekoi ekos eksi el-b elbe elbi elbo elee elek eleo eler eles elev elie elik elil elio elis elke elki elko elks elle elli ello ells eloi elok elos elro else elso elve elvo eoes eoir eois eole eoli eolo eore eori eorl erbb erbe ereb erei erel erer eres erev erie erik eril erio eris erke erki erks erle erli erll erob eroe eroi erol eroo eros erre erro errs erse ersi erso erve ervi esbo esbs esee esek esel eseo eser eses esie