-er -ey a-a a-b aaa aab aae aah aao aar aav aay ab- aba abb abe abh abo abr abv aby aea aeb aee aeh aeo aer aev aey aha ahb ahe ahh aho ahr ahv ahy aoa aob aoe aoh aoo aor aov ar- ara arb are arh aro arr arv ary av- ava avb ave avh avo avr avy ay- aya aye ayh ayo ayr baa bab bae bah bao bar bav bay bba bbb bbe bbh bbo bbr bby be- bea beb bee beh beo ber bev bey bha bhb bhe bhh bho bhr bhv boa bob boe boh boo bor bov boy bra brb bre brh bro brr brv bry bva bvb bve bvh bvo bvr bvv by- bya bye byh byo byr eaa eab eae eah eao ear eav eba ebb ebe ebh ebo ebr ebv eby eea eeb eee eeo eer eev eey eha ehb ehe ehh eho ehr ehv eo- eoa eob eoe eoh eoo eor era erb ere erh ero err erv ery eva evb eve evh evo evr evv evy eya eye eyo eyr haa hab hae hah hao har hav hay hba hbb hbe hbh hbo hbr hbv hby he- hea heb hee heh heo her hev hey hha hhb hhe hhh hho hhr hhv hhy hoa hob hoe hoh hoo hor hov hoy hr- hra hrb hre hrh hro hrr hrv hv- hva hvb hvo hvr hvv hvy hy- hya hyb hye hyh hyo hyr hyv hyy oaa oab oae oah oao oar oav ob- oba obb obe obh obo obr obv oby oea oeb oee oeh oeo oer oey oha ohe ohh oho ohr oo- ooa oob ooh ooo oor oov or- ora orb ore orh oro orr orv ory ov- ova ovb ove ovh ovo ovv oya oye oyo ra- raa rab rae rah rao rar rav ray rba rbb rbe rbh rbo rbr re- rea reb ree reh reo rer rev rey rh- rha rhb rhe rhh rho rhr rhv roa rob roe roh roo ror rov roy rra rrb rrh rrr rva rvb rve rvh rvo rvr rvv rvy ry- rya rye ryo ryr ryy v-a v-e vaa vab vae vah vao var vav vay vba vbh vbo vbr vbv vea veb vee veh veo ver vey vh- vha vhb vhe vho voa vob voe voh voo vor vov voy vra vrb vre vrh vrr vry vva vvb vvo vvr vvv vye yaa yab yae yah yao yar yav yay ybe ybr yby yea yeb yee yeh yeo yer yev yey yha yhe yob yoe yoo yor yoy yra yre yro yva yve yvo yvr yvy yyb yye yyy