a-a a-i a-t aaa aaf aai aao aar aat aax aay af- afa aff afi afo afr aft afx afy ai- aia aif aii aio air ait aix aiy aoa aof aoi aoo aor aot aox ar- ara arf ari aro arr art arx ary at- ata atf ati ato atr att atx ax- axa axi axo axr axt axx ay- aya ayf ayi ayo ayr ayt ayx faa faf fai fao far fat fax fay ffa fff ffi ffo ffr fft ffx ffy fia fif fii fir fit fix foa fof foi foo for fot fox foy fra frf fri fro frr frt fry fta ftf fti fto ftr ftt ftx fty fxi fxr fxt fxx fy- fya fyi fyo i-f ia- iaa iaf iai iao iar iat ifa iff ifi ifo ifr ift ifx ify iia iif iii iio iir iit iix io- ioa iof ioi ioo ior iot ir- ira irf iri iro irr irt irx iry ita itf iti ito itt itx ity ixi ixy iya iyo iyr iyt iyy o-i oaa oaf oai oao oar oat oax of- ofa off ofi ofo ofr oft ofx oia oif oii oio oir oit oo- ooa oof ooi ooo oor oot oox or- ora orf ori oro orr ort orx ory ot- ota otf oti oto otr ott ox- oxa oxf oxi oxo oxt oxx oxy oya oyi oyo ra- raa raf rai rao rar rat rax ray rfa rff rfi rfo rfr rft ria rif rii rio rir rit rix riy roa rof roi roo ror rot rox roy rra rrf rri rrr rrt rta rtf rti rto rtr rtt rtx rty rxr ry- rya ryf ryo ryr ryy t-x taa taf tai tao tar tat tax tay tfa tff tfi tfo tfr tft tfx tia tif tii tio tir tit tix tiy to- toa tof toi too tor tot tox toy tra trf tri tro trr trt trx try tta ttf tti tto ttr ttt ttx tty txf txi txt tya tyf tyo tyr tyt xaa xaf xar xat xfa xft xfx xia xii xio xit xix xoa xof xoi xoo xor xot xox xrf xrt xrx xry xtf xti xtr xtx xty xxi xxo xxx xxy xyr xyy yaa yaf yai yao yar yat yax yay yfa yff yfr yft yif yii yio yir yit yof yoi yoo yor yot yox yoy yra yrf yro yrt yta ytf yto ytr ytt yxa yxy yyf yyt yyy