-er b-u bbb bbe bbi bbk bbl bbr bbs bbt bbu be- beb bee bei bek bel ber bes bet beu bi- bib bie bii bik bil bir bis bit biu bkb bke bkk bkl bkr bks bkt blb ble bli blk bll blr bls blt blu brb bre bri brk brl brr brs brt bru bsb bse bsi bsk bsl bsr bss bst bsu btb bte bti btk btl btr bts btt btu bub bue bui buk bul bur bus but buu ebb ebe ebi ebk ebl ebr ebs ebt ebu eeb eee eek eel eer ees eet eib eie eii eik eil eir eis eit eiu ekb eke eki ekl ekr eks ekt eku elb ele eli elk ell elr els elt elu erb ere eri erk erl err ers ert eru es- esb ese esi esk esl esr ess est esu etb ete eti etk etl etr ets ett etu eu- eub eue eui eul eur eus eut ibb ibe ibi ibk ibl ibr ibs ibt ibu ie- iee iei iek iel ier ies iet iib iie iii iil iir iis iit iiu ikb ike iki ikk ikl ikr iks ikt iku il- ilb ile ili ilk ill ilr ils ilt ilu ir- irb ire iri irk irl irr irs irt iru is- isb ise isi isk isl isr iss ist isu itb ite iti itk itl its itt itu iu- iub iue iui iur ius iut k-t kbb kbe kbi kbk kbl kbr kbs kbu ke- keb kee kei kek kel ker kes ket kib kie kii kik kil kir kis kit kiu kkb kke kki kkk kkl kkr kks kkt kku kl- klb kli klr kls klt klu kri krk krl krr krs krt kru ksb kse ksi ksk ksl ksr kss kst ksu ktb kte ktk ktl ktr kts ktt ktu kub kue kui kuk kul kur kus kut kuu lbb lbe lbi lbk lbl lbr lbs lbt lbu leb lee lei lek lel ler les let leu lib lie lii lik lil lir lis lit liu lkb lkl lkr lks lkt llb lle lli llk lll llr lls llt llu lrb lri lrk lrr lrs lrt lru lsb lse lsi lsk lsl lsr lss lst lsu ltb lte lti ltk ltl ltr lts ltt ltu lub lue lui luk lul lur lus lut luu rbb rbe rbi rbk rbl rbr rbs rbt rbu re- reb ree rei rek rel rer res ret reu rib rie rii rik ril rir ris rit rkb rke rkk rks rkt rku rle rli rll rlr rls rlt rlu rrb rri rrk rrl rrr rrs rrt rru rsb rse rsi rsk rsl rsr rss rst rsu rtb rte rti rtk rtl rtr rts rtt rtu rub rue rui ruk rur rus rut ruu sbb sbe sbi sbk sbl sbr sbs sbt sbu se- seb see sei sek sel ser ses set seu sib sie sii sik sil sir sis sit siu sk- skb ske ski skk skl skr sks skt sku slb sle sli slk sll slr sls slt slu sr- srb sre sri srk srl srr srs srt ss- ssb sse ssi ssk ssl ssr sss sst ssu stb ste sti stk stl str sts stt stu sub sue sui suk sul sur sus sut suu tbb tbe tbi tbk tbl tbr tbs tbt tbu te- teb tee tei tek tel ter tes tet teu tib tie tii tik til tir tis tit tiu tkb tke tkk tkl tkr tks tkt tle tli tlk tll tlr tls tlt tlu trb tre tri trk trl trr trs trt tru tsb tse tsi tsk tsl tsr tss tst tsu ttb tte tti ttk ttl ttr tts ttt ttu tub tue tui tuk tul tur tus tut tuu ubb ube ubi ubk ubl ubr ubs ubt ubu ueb uee uei uel uer ues uet uib uie uii uil uir uis uit uiu ukb uke uki ukk ukl ukr uku ulb ule uli ulk ull ulr uls ult ulu ur- urb ure uri urk url urr urs urt uru usb use usi usk usl usr uss ust usu utb ute uti utk utl utr uts utt utu uue uur uus uut uuu

bbbb bbbs bbeb bbet bblb bbls bebb bebe bebi beeb beek beel beer bees beet beik beil beir beis beit beke beki beks bele beli belk bell bels belt belu bere beri berk berr bers bert beru bes- bese besk bess best bete beti bets bett betu beuk beur bibb bibe bibi bibl bibs bieb biel bier bies biet bieu biis bike biku bile bili bilk bill bils bilt bilu birb bire biri birk birl birr birs birt biru bis- bise bisk bisl biss bist bisu bite bits bitt bitu blbt bleb blee blei blek bles blet bleu blik blir blis blit blkb blls blss blst blts blub blue blur blus blut breb bree brei brek brel brer bres bret brie brik bril bris brit brkb brls brrr brrs brsb brsr brst brue brus brut bseb bsee bser bses bset bskt bsse bsts btek btie btrt btss bttb btus bubb bube bubi bubs bubu buel buer bueu buie buik buir buis buit buiu buke buki bukk buku bulb bule buli bulk bull buls bult bulu bur- burb bure buri burk burl burr burs burt buru buse busi busk buss bust busu but- bute buti buts butt buus ebbr ebbs ebel eber ebes ebis ebit ebli ebru ebul ebur ebus eeee eees eeke eeks eele eels eers eese eesi eesk eete eets eetu eiei eier eies eike eiki eiks eile eire eirs eise eisk eiss eist eitb eiti eitr ekeb ekek eker ekes eket ekis ekki eksi ekur el-b elbe elbi elbu elee elek eler eles elet elie elik elil elis elit elke elki elks elle elli ells ellu else elst elsu elte elts elue elui elul elus erbb erbe ereb erei erel erer eres eret erie erik eril eris erit eriu erke erki erks erle erli erll erre errs