-er -ey b-u bbb bbc bbe bbh bbr bbu bby bcb bcc bce bch bcr bcu bcv bcy be- beb bec bee beh ber beu bev bey bhb bhc bhe bhh bhr bhu bhv brb bre brh brr bru brv bry bub buc bue buh bur buu buy bvb bvc bve bvh bvr bvu bvv by- byc bye byh byr byu c-- cbb cbc cbe cbh cbr cbu cbv cby ccb ccc cce cch ccr ccu ccv ce- ceb cec cee ceh cer ceu cev cey ch- chb chc che chh chr chu chv chy crb crc cre crh crr cru crv cry cub cuc cue cuh cur cuu cuv cuy cvb cvc cve cvh cvr cvu cvv cyb cyc cye cyr ebb ebc ebe ebh ebr ebu ebv eby ec- ecb ecc ece ech ecr ecu ecv eeb eec eee eer eev eey ehb ehc ehe ehh ehr ehu ehv erb erc ere erh err eru erv ery eu- eub euc eue eur euv evb evc eve evh evr evv evy eyc eye eyr hbb hbc hbe hbh hbr hbu hbv hby hcb hcc hce hch hcr hcv hcy he- heb hec hee heh her heu hev hey hhb hhc hhe hhh hhr hhu hhv hhy hr- hrb hrc hre hrh hrr hru hrv hub huc hue huh hur huu huv huy hv- hvb hvc hvr hvv hvy hy- hyb hyc hye hyh hyr hyv hyy rbb rbc rbe rbh rbr rbu rcb rcc rce rch rcr rcu rcv re- reb rec ree reh rer reu rev rey rh- rhb rhc rhe rhh rhr rhu rhv rrb rrc rrh rrr rru rub ruc rue ruh rur ruu ruv ruy rvb rvc rve rvh rvr rvu rvv rvy ry- ryc rye ryr ryu ryy ubb ubc ube ubh ubr ubu ubv uby ucb ucc uce uch ucr ucu ucv ueb uec uee ueh uer uey uhb uhc uhe uhh uhr uhu uhv uhy ur- urb urc ure urr uru ury uuc uue uur uuu uvb uvc uve uvu uvv uyc uyu v-e vbc vbh vbr vbv vcc vce vch vcr vcu vcy veb vec vee veh ver veu vey vh- vhb vhc vhe vrb vrc vre vrh vrr vru vry vue vur vuv vvb vvc vvr vvv vye ybc ybe ybr yby ycc yce ych ycu ycv ycy yeb yec yee yeh yer yev yey yhc yhe yhu yrc yre yru yue yuh yur yuu yuv yuy yve yvr yvy yyb yyc yye yyu yyy