a-a a-t aaa aar aas aat aay ar- ara arr ars art ary as- asa asr ass ast asy at- ata atr ats att ay- aya ayr ays ayt ra- raa rar ras rat ray rra rrr rrs rrt rsa rsr rss rst rta rtr rts rtt rty ry- rya ryr rys ryy saa sar sas sat say sr- sra srr srs srt sry ss- ssa ssr sss sst sta str sts stt sty sy- sya syr sys syt taa tar tas tat tay tra trr trs trt try tsa tsr tss tst tsy tta ttr tts ttt tty tya tyr tys tyt yaa yar yas yat yay yra yrs yrt ysa ysr yss yst ysy yta ytr yts ytt yys yyt yyy