a-a a-b aaa aab aah aan aao aar aav aay ab- aba abb abh abn abo abr abv aby aha ahb ahh ahn aho ahr ahv ahy an- ana anb anh ann ano anr anv any aoa aob aoh aon aoo aor aov ar- ara arb arh arn aro arr arv ary av- ava avb avh avn avo avr avy ay- aya ayh ayn ayo ayr baa bab bah ban bao bar bav bay bba bbb bbh bbn bbo bbr bby bha bhb bhh bho bhr bhv bna bnb bnn bno bnr bnv boa bob boh bon boo bor bov boy bra brb brh brn bro brr brv bry bva bvb bvh bvn bvo bvr bvv by- bya byh byn byo byr haa hab hah han hao har hav hay hba hbb hbh hbn hbo hbr hbv hby hha hhb hhh hhn hho hhr hhv hhy hna hnb hnh hnn hno hnv hny hoa hob hoh hon hoo hor hov hoy hr- hra hrb hrh hrn hro hrr hrv hv- hva hvb hvn hvo hvr hvv hvy hy- hya hyb hyh hyn hyo hyr hyv hyy naa nab nah nan nao nar nav nay nba nbb nbn nbo nbr nbv nha nhb nhh nhn nhr nhv nhy nna nnb nnh nnn nno nnv no- noa nob noh non noo nor nov noy nra nrb nrn nro nrr nrv nry nva nvb nvh nvn nvv nya nyn nyo nyy oaa oab oah oan oao oar oav ob- oba obb obh obn obo obr obv oby oha ohh ohn oho ohr on- ona onb onh onn ono onr ony oo- ooa oob ooh oon ooo oor oov or- ora orb orh orn oro orr orv ory ov- ova ovb ovh ovo ovv oya oyo ra- raa rab rah ran rao rar rav ray rba rbb rbh rbn rbo rbr rh- rha rhb rhh rhn rho rhr rhv rna rnb rnh rnn rno rnr rnv rny roa rob roh ron roo ror rov roy rra rrb rrh rrn rrr rva rvb rvh rvn rvo rvr rvv rvy ry- rya ryn ryo ryr ryy v-a vaa vab vah van vao var vav vay vba vbh vbo vbr vbv vh- vha vhb vho vn- vna vno vnr vnv voa vob voh von voo vor vov voy vra vrb vrh vrn vrr vry vva vvb vvo vvr vvv vyn yaa yab yah yan yao yar yav yay ybr yby yha yna ynn yny yob yon yoo yor yoy yra yrn yro yva yvo yvr yvy yyb yyy