a-a a-b aaa aab aaj aas aay ab- aba abb abj abs aby aja ajb ajj ajs ajy as- asa asb asj ass asy ay- aya ays baa bab baj bas bay bba bbb bbs bby bja bjj bjs bsa bsb bsj bss bsy by- bya byj bys jaa jab jaj jas jay jba jbj jbs jja jjb jjj jjs jjy jsa jsb jsj jss jsy jyj jys saa sab saj sas say sba sbb sbj sbs sby sja sjb sjj sjs ss- ssa ssb ssj sss sy- sya syb sys yaa yab yas yay ybs yby ysa ysb ysj yss ysy yyb yys yyy