-er -ic b-u bbb bbc bbe bbi bbk bbl bbr bbs bbu bcb bcc bce bci bck bcl bcr bcs bcu be- beb bec bee bei bek bel ber bes beu bi- bib bic bie bii bik bil bir bis biu bkb bkc bke bkk bkl bkr bks blb blc ble bli blk bll blr bls blu brb bre bri brk brl brr brs bru bsb bsc bse bsi bsk bsl bsr bss bsu bub buc bue bui buk bul bur bus buu c-- cbb cbc cbe cbi cbk cbl cbr cbs cbu ccb ccc cce cci cck ccl ccr ccs ccu ce- ceb cec cee cei cek cel cer ces ceu ci- cib cic cie cii cik cil cir cis ciu ckb ckc cki cks cl- clb clc cle cli clk cll clr cls clu crb crc cre cri crk crl crr crs cru csb csc cse csi csk csl csr css csu cub cuc cue cui cuk cul cur cus cuu ebb ebc ebe ebi ebk ebl ebr ebs ebu ec- ecb ecc ece eci eck ecl ecr ecs ecu eeb eec eee eek eel eer ees eib eic eie eii eik eil eir eis eiu ekb ekc eke eki ekl ekr eks eku elb elc ele eli elk ell elr els elu erb erc ere eri erk erl err ers eru es- esb esc ese esi esk esl esr ess esu eu- eub euc eue eui eul eur eus ibb ibc ibe ibi ibk ibl ibr ibs ibu icb icc ice ici ick icl icr ics icu ie- iec iee iei iek iel ier ies iib iic iie iii iil iir iis iiu ikb ikc ike iki ikk ikl ikr iks iku il- ilb ilc ile ili ilk ill ilr ils ilu ir- irb irc ire iri irk irl irr irs iru is- isb isc ise isi isk isl isr iss isu iu- iub iuc iue iui iur ius kbb kbc kbe kbi kbk kbl kbr kbs kbu kcb kcc kce kci kck kcl kcr kcs kcu ke- keb kec kee kei kek kel ker kes kib kic kie kii kik kil kir kis kiu kkb kkc kke kki kkk kkl kkr kks kku kl- klb klc kli klr kls klu krc kri krk krl krr krs kru ksb ksc kse ksi ksk ksl ksr kss ksu kub kuc kue kui kuk kul kur kus kuu lbb lbc lbe lbi lbk lbl lbr lbs lbu lcb lcc lce lci lck lcl lcr lcs lcu leb lec lee lei lek lel ler les leu lib lic lie lii lik lil lir lis liu lkb lkl lkr lks llb llc lle lli llk lll llr lls llu lrb lrc lri lrk lrr lrs lru lsb lsc lse lsi lsk lsl lsr lss lsu lub luc lue lui luk lul lur lus luu rbb rbc rbe rbi rbk rbl rbr rbs rbu rcb rcc rce rci rcl rcr rcs rcu re- reb rec ree rei rek rel rer res reu rib ric rie rii rik ril rir ris rkb rkc rke rkk rks rku rlc rle rli rll rlr rls rlu rrb rrc rri rrk rrl rrr rrs rru rsb rsc rse rsi rsk rsl rsr rss rsu rub ruc rue rui ruk rur rus ruu sbb sbc sbe sbi sbk sbl sbr sbs sbu scb scc sce sci sck scl scr scs scu se- seb sec see sei sek sel ser ses seu sib sic sie sii sik sil sir sis siu sk- skb skc ske ski skk skl skr sks sku slb slc sle sli slk sll slr sls slu sr- srb src sre sri srk srl srr srs ss- ssb ssc sse ssi ssk ssl ssr sss ssu sub suc sue sui suk sul sur sus suu ubb ubc ube ubi ubk ubl ubr ubs ubu ucb ucc uce uci uck ucl ucr ucs ucu ueb uec uee uei uel uer ues uib uic uie uii uil uir uis uiu ukb ukc uke uki ukk ukl ukr uku ulb ulc ule uli ulk ull ulr uls ulu ur- urb urc ure uri urk url urr urs uru usb usc use usi usk usl usr uss usu uuc uue uur uus uuu

bbbb bbbs bbci bbeb bblb bbls bbrc bcbc bcbs bccc bcci bccl bccs bcec bcer bces bcie bcis bcrs bcru bcsc bcsl bcss bcuc bebb bebe bebi beci beck becs becu beeb beek beel beer bees beic beik beil beir beis beke beki beks bele beli belk bell bels belu berc bere beri berk berr bers beru bes- bese besk bess beuk beur bibb bibe bibi bibl bibs bicc bice bici bick bics bieb biel bier bies bieu biis bike biku bile bili bilk bill bils bilu birb bire biri birk birl birr birs biru bis- bisc bise bisk bisl biss bisu blcu bleb blee blei blek bles bleu blic blik blir blis blkb blls blrc blss blub blue blur blus brcb brce breb brec bree brei brek brel brer bres bric brie brik bril bris brkb brls brrr brrs brsb brsr bruc brue brus bsci bscs bseb bsec bsee bser bses bsic bslc bssc bsse bubb bube bubi bubs bubu bucc buce buci buck bucs bucu buel buer bueu buic buie buik buir buis buiu buke buki bukk buku bulb bule buli bulk bull buls bulu bur- burb bure buri burk burl burr burs buru busc buse busi busk buss busu buus cbbc cbbs cbcc cbce cbcl cbcr cbcs cbcu cbec cbee cber cbir cbkl cbkr cblb cblc cbre cbrl cbsc cbse cbsi cbus ccbc cccb cccc ccci cccl cccs cccu ccee ccel ccic ccii ccil ccir ccis cclc ccli ccls ccrc ccre ccri ccrl ccrs ccsi ccsl ccss ccuc ccus cebs cebu cec- cece ceci cecs ceeb ceec ceel cees ceil ceke cel- celc cele celi cell cels cer- cerc cere ceri cerl cers cesc cese cesi cesr cess ceui cibc cibe cibi cicc cici cicr cics cicu ciee ciel cier cies ciii ciis