a-a a-z aaa aap aar aas aay aaz ap- apa app apr aps apy ar- ara arp arr ars ary arz as- asa asp asr ass asy asz ay- aya ayp ayr ays ayz az- aza azp azs azy azz p-p paa pap par pas pay paz ppa ppp ppr pps ppz pra prp prr prs pry prz ps- psa psp psr pss psy py- pya pyr pys pzp ra- raa rap rar ras ray raz rpa rpp rpr rps rpz rra rrp rrr rrs rsa rsp rsr rss ry- rya ryr rys ryy ryz rza rzy saa sap sar sas say saz spa spp spr sps spy spz sr- sra srp srr srs sry ss- ssa ssp ssr sss ssz sy- sya syp syr sys sza szp szr yaa yap yar yas yay yaz ypa yps yra yrp yrs ysa ysp ysr yss ysy ysz yys yyy yyz yzr yzy zaa zap zar zas zay zaz zpp zpr zrp zrs zsa zsz zzr zzs zzy zzz