-er bbb bbd bbe bbk bbo bbr bbs bbt bdb bdd bde bdk bdo bdr bds bdt be- beb bed bee bek beo ber bes bet bkb bke bkk bko bkr bks bkt bob bod boe bok boo bor bos bot brb brd bre brk bro brr brs brt bsb bsd bse bsk bso bsr bss bst btb btd bte btk bto btr bts btt dbb dbd dbe dbk dbo dbr dbs dbt ddb ddd dde ddk ddo ddr dds ddt de- deb ded dee dek deo der des det dkb dke dkk dko dkr dks dkt dob dod doe dok doo dor dos dot drb drd dre drk dro drr drs drt dsb dsd dse dsk dso dsr dss dst dtb dtd dte dtk dto dtr dts dtt ebb ebd ebe ebk ebo ebr ebs ebt ed- edb edd ede edk edo edr eds edt eeb eed eee eek eeo eer ees eet ekb ekd eke eko ekr eks ekt eo- eob eod eoe eok eoo eor eos eot erb erd ere erk ero err ers ert es- esb esd ese esk eso esr ess est etb etd ete etk eto etr ets ett k-t kbb kbd kbe kbk kbo kbr kbs kdb kde kdk kdo kdr kds kdt ke- keb ked kee kek keo ker kes ket kkb kke kkk kkr kks kkt kob kod koe kok koo kor kos kot krd krk kro krr krs krt ksb ksd kse ksk kso ksr kss kst ktb kte ktk kto ktr kts ktt ob- obb obd obe obk obo obr obs obt odb odd ode odo odr ods odt oeb oed oee oeo oer oes oet okb okd oke okk oko okr oks oo- oob ood ook ooo oor oos oot or- orb ord ore ork oro orr ors ort os- osb osd ose osk oso osr oss ost ot- otb otd ote otk oto otr ots ott rbb rbd rbe rbk rbo rbr rbs rbt rdb rdd rde rdo rdr rds rdt re- reb red ree rek reo rer res ret rkb rke rkk rko rks rkt rob rod roe rok roo ror ros rot rrb rrd rrk rrr rrs rrt rsb rsd rse rsk rso rsr rss rst rtb rtd rte rtk rto rtr rts rtt sbb sbd sbe sbk sbo sbr sbs sbt sdb sdd sde sdk sdo sdr sds sdt se- seb sed see sek seo ser ses set sk- skb skd ske skk sko skr sks skt sob sod soe sok soo sor sos sot sr- srb srd sre srk sro srr srs srt ss- ssb ssd sse ssk sso ssr sss sst stb std ste stk sto str sts stt tbb tbd tbe tbk tbo tbr tbs tbt tdb tdd tde tdk tdo tdr tds tdt te- teb ted tee tek teo ter tes tet tkb tke tkk tko tkr tks tkt to- tob tod toe tok too tor tos tot trb trd tre trk tro trr trs trt tsb tsd tse tsk tso tsr tss tst ttb ttd tte ttk tto ttr tts ttt

-ose bbbb bbbs bbdd bbdo bbeb bbet bd-r bdes bdos bdsd bebb bebe bebo bede bedo beds beeb beed beek beer bees beet beke beko beks beo- beod beok beor beos beot berd bere berk bero berr bers bert bes- bese besk beso bess best bete beto bets bett bobb bobe bobo bobs bodb bode bodo bods boee boeo boer boes boet boke boko boks boob bood booe book boor boos boot bor- bord bore bork boro borr bors bort bose bosk boso boss bost botb botd bote boto bots bott brdo brds brdt breb bred bree brek breo brer bres bret brkb brob brod broe brok broo bror bros brot brrr brrs brsb brsr brst bsbd bseb bsed bsee bser bses bset bskt bsod bsos bsrd bssd bsse bsts btdt btek btob btor btrt btss bttb d-bo dbos dbrs dbss dbtt dddd ddes ddot ddre ddss ddts debe debs debt dedd dede dedo deeb deed deek deer dees deet dek- deke deks deor deos der- derb dere derk dero derr ders des- dese desk deso dess dest dete detk deto detr dets dobb dobe dobs dod- dodd dode dodo dods doek doer does doke doko doob dood dook door doos doot dord dore dork doro dorr dors dort dose dosk doso doss dost dotd dote dotk doto dots dott dred dree drek dres dret drob drod drot drrs dsdr dsos dsrr dsst dsto dsts dted dtek dtor dtot dtss ebbo ebbr ebbs ebed eber ebes eboe eboo ebor ebos ebro edde eddo edds ede- eder edes edod edos edss edts eede eeee eees eeke eeks eero eers eese eesk eete eets ekeb eked ekek eker ekes eket ekos eode eoes eore eost eotd eoto eots erbb erbe erde erds ereb ered erer eres eret erke erks erob erod eroe eroo eros erre erro errs erse erso erst erts esbo esbs esds esee esek eseo eser eses eset eske esko esks eso- esok esos esrd esse esso esst estd este esto estr ests etbr etds etee eter etes etoe etok etos etre etro ette etto k-os kbbb kbbd kbbe kbbk kbbo kbbr kbbs kbbt kbdb kbde kbdo kbdr kbds kbeb kbed kbee kbek kbeo kber kbes kbet kbkb kbkk kbko kbkr kbob kbod kboe kbok kboo kbos kbot kbrb kbrd kbre kbrk kbro kbrt kbsb kbsk kbso kbsr kbss kbst kbtb kbte kbtk kbto kbtr kbts kbtt kdbb kdbr kdbs kddb kddd kddk kddr kdeb kdet kdkb kdkd kdkk kdko kdkr kdkt kdoe kdok kdot kdrb kdro kdrs kdsd kdsk kdsr kdss kdst kdtd kdtr kebb kebe kebr kebt kedb kedd kede kedo kedr keds kedt keed keek keer kees keet kekb keke keko keks keok keos ker- kerb kere kerk kero kerr kers kert kesb kesd kesk keso kesr kess kest ket- ketd kete ketk keto ketr kets kett kkbb kkbd kkbe kkbo kkbr kkbs kkbt kkdd kkdo kkdt kked kkkk kkob kkoo kkor kkot kkrb kkre