a-a a-b aaa aab aan aas aav aay ab- aba abb abn abs abv aby an- ana anb ann ans anv any as- asa asb asn ass asv asy av- ava avb avn avs avy ay- aya ayn ays baa bab ban bas bav bay bba bbb bbn bbs bby bna bnb bnn bns bnv bsa bsb bsn bss bsv bsy bva bvb bvn bvs bvv by- bya byn bys naa nab nan nas nav nay nba nbb nbn nbs nbv nna nnb nnn nns nnv nsa nsb nsn nss nsv nsy nva nvb nvn nvv nya nyn nys nyy saa sab san sas sav say sba sbb sbn sbs sbv sby sna snb snn sns snv sny ss- ssa ssb ssn sss ssv sva svb svn svs svv svy sy- sya syb syn sys v-a vaa vab van vas vav vay vba vbs vbv vn- vna vns vnv vsa vsb vsn vss vsv vva vvb vvs vvv vyn yaa yab yan yas yav yay ybs yby yna ynn yns yny ysa ysb yss ysy yva yvy yyb yys yyy