-er -ey b-u bbb bbc bbe bbh bbk bbr bbs bbu bby bcb bcc bce bch bck bcr bcs bcu bcy be- beb bec bee beh bek ber bes beu bey bhb bhc bhe bhh bhk bhr bhs bhu bkb bkc bke bkk bkr bks brb bre brh brk brr brs bru bry bsb bsc bse bsh bsk bsr bss bsu bsy bub buc bue buh buk bur bus buu buy by- byc bye byh byk byr bys byu c-- cbb cbc cbe cbh cbk cbr cbs cbu cby ccb ccc cce cch cck ccr ccs ccu ce- ceb cec cee ceh cek cer ces ceu cey ch- chb chc che chh chk chr chs chu chy ckb ckc ckh cks cky crb crc cre crh crk crr crs cru cry csb csc cse csh csk csr css csu csy cub cuc cue cuh cuk cur cus cuu cuy cyb cyc cye cyk cyr cys ebb ebc ebe ebh ebk ebr ebs ebu eby ec- ecb ecc ece ech eck ecr ecs ecu eeb eec eee eek eer ees eey ehb ehc ehe ehh ehr ehs ehu ekb ekc eke ekh ekr eks eku eky erb erc ere erh erk err ers eru ery es- esb esc ese esh esk esr ess esu esy eu- eub euc eue eur eus eyc eye eyr eys hbb hbc hbe hbh hbk hbr hbs hbu hby hcb hcc hce hch hck hcr hcs hcy he- heb hec hee heh hek her hes heu hey hhb hhc hhe hhh hhk hhr hhs hhu hhy hkb hkh hkk hkr hks hku hr- hrb hrc hre hrh hrk hrr hrs hru hsb hsc hse hsh hsk hsr hss hsu hsy hub huc hue huh huk hur hus huu huy hy- hyb hyc hye hyh hyr hys hyy kbb kbc kbe kbh kbk kbr kbs kbu kcb kcc kce kch kck kcr kcs kcu ke- keb kec kee keh kek ker kes key khe khh khk khr khs khu kkb kkc kke kkh kkk kkr kks kku kky krc krk krr krs kru kry ksb ksc kse ksh ksk ksr kss ksu kub kuc kue kuh kuk kur kus kuu kuy kyc kye kyr kys kyu rbb rbc rbe rbh rbk rbr rbs rbu rcb rcc rce rch rcr rcs rcu re- reb rec ree reh rek rer res reu rey rh- rhb rhc rhe rhh rhr rhs rhu rkb rkc rke rkk rks rku rky rrb rrc rrh rrk rrr rrs rru rsb rsc rse rsh rsk rsr rss rsu rub ruc rue ruh ruk rur rus ruu ruy ry- ryc rye ryk ryr rys ryu ryy sbb sbc sbe sbh sbk sbr sbs sbu sby scb scc sce sch sck scr scs scu se- seb sec see seh sek ser ses seu sey sh- shb shc she shh shk shr shs shu shy sk- skb skc ske skh skk skr sks sku sky sr- srb src sre srh srk srr srs sry ss- ssb ssc sse ssh ssk ssr sss ssu sub suc sue suh suk sur sus suu suy sy- syb syc sye syh syk syr sys syu ubb ubc ube ubh ubk ubr ubs ubu uby ucb ucc uce uch uck ucr ucs ucu ueb uec uee ueh uer ues uey uhb uhc uhe uhh uhr uhs uhu uhy ukb ukc uke ukk ukr uku ur- urb urc ure urk urr urs uru ury usb usc use ush usk usr uss usu uuc uue uur uus uuu uyc uys uyu ybc ybe ybr ybs yby ycc yce ych ycs ycu ycy yeb yec yee yeh yek yer yes yey yhc yhe yhs yhu ykk yrc yre yrs yru ysb ysc yse ysk ysr yss ysu ysy yue yuh yuk yur yus yuu yuy yyb yyc yye yys yyu yyy