a-a a-b a-z aaa aab aah aas aav aaz ab- aba abb abh abs abv abz aha ahb ahh ahs ahv ahz as- asa asb ash ass asv asz av- ava avb avh avs avz az- aza azb azs azz baa bab bah bas bav baz bba bbb bbh bbs bha bhb bhh bhs bhv bsa bsb bsh bss bsv bva bvb bvh bvs bvv bza bzh bzs bzz haa hab hah has hav haz hba hbb hbh hbs hbv hbz hha hhb hhh hhs hhv hhz hsa hsb hsh hss hsv hsz hv- hva hvb hvs hvv hzs saa sab sah sas sav saz sba sbb sbh sbs sbv sh- sha shb shh shs shv ss- ssa ssb ssh sss ssv ssz sva svb svs svv svz sza v-a vaa vab vah vas vav vaz vba vbh vbs vbv vbz vh- vha vhb vhs vsa vsb vsh vss vsv vva vvb vvs vvv vvz zaa zab zah zas zav zaz zbb zbs zbv zha zhs zsa zsh zsz zzs zzz