-er bbb bbe bbh bbi bbk bbo bbr bbs be- beb bee beh bei bek beo ber bes bhb bhe bhh bhi bhk bho bhr bhs bi- bib bie bih bii bik bio bir bis bkb bke bkk bko bkr bks bob boe boh boi bok boo bor bos brb bre brh bri brk bro brr brs bsb bse bsh bsi bsk bso bsr bss ebb ebe ebh ebi ebk ebo ebr ebs eeb eee eek eeo eer ees ehb ehe ehh ehi eho ehr ehs eib eie eii eik eio eir eis ekb eke ekh eki eko ekr eks eo- eob eoe eoh eoi eok eoo eor eos erb ere erh eri erk ero err ers es- esb ese esh esi esk eso esr ess h-i hbb hbe hbh hbi hbk hbo hbr hbs he- heb hee heh hei hek heo her hes hhb hhe hhh hhi hhk hho hhr hhs hib hie hih hii hik hio hir his hkb hkh hki hkk hko hkr hks hob hoe hoh hoi hok hoo hor hos hr- hrb hre hrh hri hrk hro hrr hrs hsb hse hsh hsi hsk hsr hss ibb ibe ibh ibi ibk ibo ibr ibs ie- iee iei iek ier ies ihb ihe ihh ihi ihk iho ihr ihs iib iie iih iii iio iir iis ikb ike iki ikk iko ikr iks io- iob ioe ioh ioi ioo ior ios ir- irb ire iri irk iro irr irs is- isb ise ish isi isk iso isr iss kbb kbe kbh kbi kbk kbo kbr kbs ke- keb kee keh kei kek keo ker kes khe khh khi khk kho khr khs kib kie kih kii kik kio kir kis kkb kke kkh kki kkk kkr kks kob koe koh koi kok koo kor kos kri krk kro krr krs ksb kse ksh ksi ksk kso ksr kss o-i ob- obb obe obh obi obk obo obr obs oeb oee oeh oei oeo oer oes ohe ohh ohi oho ohr ohs oib oie oii oik oio oir ois okb oke oki okk oko okr oks oo- oob ooh ooi ook ooo oor oos or- orb ore orh ori ork oro orr ors os- osb ose osh osi osk oso osr oss rbb rbe rbh rbi rbk rbo rbr rbs re- reb ree reh rei rek reo rer res rh- rhb rhe rhh rhi rho rhr rhs rib rie rih rii rik rio rir ris rkb rke rkk rko rks rob roe roh roi rok roo ror ros rrb rrh rri rrk rrr rrs rsb rse rsh rsi rsk rso rsr rss sbb sbe sbh sbi sbk sbo sbr sbs se- seb see seh sei sek seo ser ses sh- shb she shh shi shk sho shr shs sib sie sih sii sik sio sir sis sk- skb ske skh ski skk sko skr sks sob soe soh soi sok soo sor sos sr- srb sre srh sri srk sro srr srs ss- ssb sse ssh ssi ssk sso ssr sss

-ose bbbb bbbs bbeb bbhs bebb bebe bebi bebo beeb beek beer bees behr behs beik beir beis beke beki beko beks beo- beok beor beos bere beri berk bero berr bers bes- bese besh besk beso bess bher bhhs bhie bhir bhoi bhor bibb bibe bibi bibo bibs bieb bier bies bihe bihi bihs biis bike bikh biko bio- bioi bios birb bire biri birk biro birr birs bis- bise bish bisk biso biss bkhs bobb bobe bobi bobo bobs boee boeo boer boes boho bohr bohs boi- boie boii bois boke boki boko boks boob booe booh book boor boos bor- bore borh bori bork boro borr bors bose bosh bosi bosk boso boss breb bree brei brek breo brer bres brhs brie brih brik brio bris brkb brob broe broh brok broo bror bros brrr brrs brsb brsr bseb bsee bser bses bshs bsos bsse ebbo ebbr ebbs eber ebes ebhs ebis eboe eboo ebor ebos ebro eeee eees eehs eeke eeks eero eers eese eesi eesk eheh eher ehhs ehis ehre eiei eier eies eiho eike eiki eiko eiks eire eirs eise eish eisk eiso eiss ekeb ekek eker ekes ekho ekhs ekis ekki ekoi ekos eksi eoes eoir eois eore eori erbb erbe ereb erei erer eres erhs erie erih erik erio eris erke erki erks erob eroe eroi eroo eros erre erro errs erse ersh ersi erso esbo esbs esee esek eseo eser eses eshs esie esik esis eske esko esks eso- esok esos esri esse essh essi esso h-ii hbbs hbes hbhs hbio hbos hbrs hbss hebb hebe hebi hebo hebr heeb heek heer hees hehe heho hehs heie heih heik heir heis heke heor herb here heri herk hero herr hers hesh hess hhhh hhhs hibi hiei hier hies hihe hihi hiho hiie hiis hike hiki hiob hire hiri hirk hiro hirs hisb hise hish hiss hkir hkis hkse hobe hobo hobs hoei hoek hoer hoes hohe hoho hoie hoik hoir hois hoke hoki hoko hoks hooe hook hoor hoos hore hori hork horo horr hors hose hosh hoss hree hrhs hrib hrob hros hrso hsei hses hshs hski hsob hsse i-be ibeh ibes ibie ibis ibos ibri ibro ibss ieie ieio ieoh iere ieri iers iesi ieso iesr iher ihis ihob ihre ihss iies iiie iiii iiio iiis iioi iioo iios iirs iisi iisr ikee iker ikes ikki ikko ikoo ikri iobi ioee ioii ioio ioke ioko iooi iooo ioos iore iori iors ioso irbe iree irer ires irhs iri- irie irio iris irki irks irob iroh irre irri irrs irse isbe iseb isee iseh iseo iser ises ishe ishi ishk ishr ishs isie isis isko iso- isok isor isos isri isse issh issi isso issr isss k-os kbbb kbbe kbbi kbbk kbbo kbbr kbbs kbeb kbee kbeh kbek kbeo kber kbes kbhb kbhe kbhh kbhi kbhr kbhs kbib kbie kbik kbio kbis kbkb kbkk kbko kbkr kbob kboe kboi kbok kboo kbos kbrb kbre kbrh kbri