a-a a-b aaa aab aad aah aar aav aay ab- aba abb abd abh abr abv aby ad- ada adb add adh adr adv ady aha ahb ahd ahh ahr ahv ahy ar- ara arb ard arh arr arv ary av- ava avb avd avh avr avy ay- aya ayd ayh ayr baa bab bad bah bar bav bay bba bbb bbd bbh bbr bby bda bdb bdd bdh bdr bdv bdy bha bhb bhd bhh bhr bhv bra brb brd brh brr brv bry bva bvb bvd bvh bvr bvv by- bya byd byh byr daa dab dad dah dar dav day dba dbb dbd dbh dbr dbv dby dda ddb ddd ddh ddr ddy dh- dha dhb dhd dhh dhr dra drb drd drr drv dry dva dvb dvd dvh dvr dy- dya dyb dyd dyr dyy haa hab had hah har hav hay hba hbb hbd hbh hbr hbv hby hda hdb hdd hdh hdr hdv hdy hha hhb hhd hhh hhr hhv hhy hr- hra hrb hrd hrh hrr hrv hv- hva hvb hvd hvr hvv hvy hy- hya hyb hyd hyh hyr hyv hyy ra- raa rab rad rah rar rav ray rba rbb rbd rbh rbr rda rdb rdd rdh rdr rdv rdy rh- rha rhb rhd rhh rhr rhv rra rrb rrd rrh rrr rva rvb rvd rvh rvr rvv rvy ry- rya ryd ryr ryy v-a vaa vab vad vah var vav vay vba vbd vbh vbr vbv vdb vdd vdh vdr vdv vh- vha vhb vhd vra vrb vrd vrh vrr vry vva vvb vvr vvv vyd yaa yab yad yah yar yav yay ybr yby yda ydy yha yra yva yvr yvy yyb yyy