a-a a-i a-t aaa aai aar aat aax aay ai- aia aii air ait aix aiy ar- ara ari arr art arx ary at- ata ati atr att atx ax- axa axi axr axt axx ay- aya ayi ayr ayt ayx ia- iaa iai iar iat iia iii iir iit iix ir- ira iri irr irt irx iry ita iti itt itx ity ixi ixy iya iyr iyt iyy ra- raa rai rar rat rax ray ria rii rir rit rix riy rra rri rrr rrt rta rti rtr rtt rtx rty rxr ry- rya ryr ryy t-x taa tai tar tat tax tay tia tii tir tit tix tiy tra tri trr trt trx try tta tti ttr ttt ttx tty txi txt tya tyr tyt xaa xar xat xia xii xit xix xrt xrx xry xti xtr xtx xty xxi xxx xxy xyr xyy yaa yai yar yat yax yay yii yir yit yra yrt yta ytr ytt yxa yxy yyt yyy