-er -ey b-u bbb bbe bbk bbr bbu bby be- beb bee bek ber beu bev bey bez bkb bke bkk bkr bkv brb bre brk brr bru brv bry brz bub bue buk bur buu buy buz bvb bve bvk bvr bvu bvv by- bye byk byr byu byz bze bzr bzu bzz ebb ebe ebk ebr ebu ebv eby eeb eee eek eer eev eey ekb eke ekr eku ekv eky erb ere erk err eru erv ery erz eu- eub eue eur euv evb eve evr evv evy eye eyr eze ezr ezz k-z kbb kbe kbk kbr kbu kbz ke- keb kee kek ker kev key kez kkb kke kkk kkr kku kkv kky krk krr kru krv kry kub kue kuk kur kuu kuy kvb kvk kvr kvv kye kyr kyu kyz kzy rbb rbe rbk rbr rbu re- reb ree rek rer reu rev rey rez rkb rke rkk rku rkv rky rkz rrb rrk rrr rru rub rue ruk rur ruu ruv ruy ruz rvb rve rvr rvu rvv rvy ry- rye ryk ryr ryu ryy ryz rzb rze rzy ubb ube ubk ubr ubu ubv uby ueb uee uer uey ukb uke ukk ukr uku ukz ur- urb ure urk urr uru ury urz uue uur uuu uvb uve uvu uvv uyu uzb uzu v-e vbk vbr vbv vbz veb vee vek ver veu vey vez vkb vrb vre vrk vrr vru vry vue vuk vur vuv vuz vvb vvr vvv vvz vye ybe ybr yby ybz yeb yee yek yer yev yey yez ykk yre yru yue yuk yur yuu yuv yuy yve yvr yvy yyb yye yyu yyy yyz yzb yzr yzu yzy zbb zbr zbv zby zeb zee zek zer zev zez zub zuk zur zuz zzr zzy zzz