a-a a-i a-t aaa aai aas aat aay ai- aia aii ais ait aiy as- asa asi ass ast asy at- ata ati ats att ay- aya ayi ays ayt ia- iaa iai ias iat iia iii iis iit is- isa isi iss ist isy ita iti its itt ity iya iys iyt iyy saa sai sas sat say sia sii sis sit ss- ssa ssi sss sst sta sti sts stt sty sy- sya syi sys syt taa tai tas tat tay tia tii tis tit tiy tsa tsi tss tst tsy tta tti tts ttt tty tya tys tyt yaa yai yas yat yay yii yis yit ysa ysi yss yst ysy yta yts ytt yys yyt yyy