-ol bbb bbe bbk bbl bbo bbs bbt be- beb bee bek bel beo bes bet bkb bke bkk bkl bko bks bkt blb ble blk bll blo bls blt bob boe bok bol boo bos bot bsb bse bsk bsl bso bss bst btb bte btk btl bto bts btt ebb ebe ebk ebl ebo ebs ebt eeb eee eek eel eeo ees eet ekb eke ekl eko eks ekt elb ele elk ell elo els elt eo- eob eoe eok eol eoo eos eot es- esb ese esk esl eso ess est etb ete etk etl eto ets ett k-t kbb kbe kbk kbl kbo kbs ke- keb kee kek kel keo kes ket kkb kke kkk kkl kks kkt kl- klb klo kls klt kob koe kok kol koo kos kot ksb kse ksk ksl kso kss kst ktb kte ktk ktl kto kts ktt lbb lbe lbk lbl lbo lbs lbt leb lee lek lel leo les let lkb lkl lks lkt llb lle llk lll llo lls llt lob loe lok lol loo los lot lsb lse lsk lsl lso lss lst ltb lte ltk ltl lto lts ltt ob- obb obe obk obl obo obs obt oeb oee oel oeo oes oet okb oke okk okl oko oks olb ole olk oll olo ols olt oo- oob ook ool ooo oos oot os- osb ose osk osl oso oss ost ot- otb ote otk otl oto ots ott sbb sbe sbk sbl sbo sbs sbt se- seb see sek sel seo ses set sk- skb ske skk skl sko sks skt slb sle slk sll slo sls slt sob soe sok sol soo sos sot ss- ssb sse ssk ssl sso sss sst stb ste stk stl sto sts stt tbb tbe tbk tbl tbo tbs tbt te- teb tee tek tel teo tes tet tkb tke tkk tkl tko tks tkt tle tlk tll tlo tls tlt to- tob toe tok tol too tos tot tsb tse tsk tsl tso tss tst ttb tte ttk ttl tto tts ttt

-ose bbbb bbbs bbeb bbet bblb bbls bebb bebe bebo beeb beek beel bees beet beke beko beks bele belk bell belo bels belt beo- beok beos beot bes- bese besk beso bess best bete beto bets bett blbt bleb blee blek bleo bles blet blkb blls blob blok bloo blot blss blst blts bobb bobe bobo bobs boee boel boeo boes boet boke boko boks bole bolk boll bolo bols bolt boob booe book bool boos boot bose bosk boso boss bost botb bote boto bots bott bseb bsee bses bset bskt bsos bsse bsts btek btob btss bttb ebbo ebbs ebel ebes eboe ebol eboo ebos eeee eees eeke eeks eele eels eese eesk eete eets ekeb ekek ekes eket ekos el-b elbe elbo elee elek eleo eles elet elke elko elks elle ello ells elok elos else elso elst elte elto elts eoes eole eolo eost eoto eots esbo esbs esee esek esel eseo eses eset eske esko esks eso- esok esol esos esse essl esso esst este esto ests etee etel etes etoe etok etos ette etto k-lo k-os kbbb kbbe kbbk kbbl kbbo kbbs kbbt kbeb kbee kbek kbel kbeo kbes kbet kbkb kbkk kbkl kbko kblb kble kbll kblo kbls kblt kbob kboe kbok kboo kbos kbot kbsb kbsk kbso kbss kbst kbtb kbte kbtk kbtl kbto kbts kbtt kebb kebe kebt keek keel kees keet kekb keke kekl keko keks kele kelk kell kelo kelt keok keol keos kesb kesk keso kess kest ket- kete ketk keto kets kett kkbb kkbe kkbl kkbo kkbs kkbt kkkk kklb kkll kklo kkls kkob kkol kkoo kkot kkse kkss kkst kktk kktl kkts klbb klbe klbl klbs klbt kleb klee klek kleo kles klet klkk klkl klko klks kllb klle kllk klls klob kloe klok klol kloo klos klse klst kltk klto kltt kobb kobe kobk kobo kobs koel koes kokb koke kokk koko koks kolb kole kolk koll kolo kols kolt koob kook kool kooo koos koot kos- kosb kose koso koss kost kotb kote kotk koto kots kott ksbl ksbs ksee ksek ksel kseo kset kskb kske kskk ksko ksks kslb ksle kslk ksll kslo kslt ksob ksok ksol ksoo ksos ksse kssl ksso ksss ksst kstb kste kstk kstl ksto ksts kstt ktbb ktbl ktbt ktee ktek ktel ktkb ktke ktkk ktko ktks ktkt ktlb ktlk ktlo ktlt ktob ktoe ktok ktoo ktot ktsl ktso ktst kttk ktto ktts kttt lbos lebo leek leel lees leet leke lekk leko leks lele lell lelo leok leos lese lesk less lest lete leto lets lett llbs lles llet llks llll lloo lob- lobb lobe lobo lobs loeb loes loke lokk loko lole loll lolo lols loob looe look lool loos loot lose loso loss lost lote lotl loto lots lott lses lset lsso lsts ltbl ltee ltke o-eo obbo obel obes obet obkb oble obls oboe obok obol obos obot obss obst obts oele oese oest okes oket okko oklo okok okol okot okso okto olbo ole- oleo oles olet olle ollo olos olot olst oobe ooes oolo oooo ooos oose oost ootb oots osbe osee osek osel oses oset oslo osoo osos ossb osse osso oste osts otbs otee otes oto- otoe otok otoo otos otse otso otte otto otts s-os sbbs sbot sbse sbst sbtk se-e se-k se-o se-s se-t sebe sebo sebs sebt seeb seek seel sees seet seke sekk seko sekt selb sele selk sell selo sels selt seok seol sese seso sess sest set- sete setl seto sets sett skee skel skeo skes sket skoe skol skot skss sleb slee sles slet slob sloe sloo slos slot slst slts sobe sobo sobs sobt soel soeo soes soke sokk soko sole solk soll solo sols solt sook sool soos soot sose soso soss sost sote sotk sotl soto sots ssee sses sset ssle sslt ssot sssb ssss sstb sstl ssts stbs stee stek stel steo