a-a a-i a-t aaa aaf aai aan aao aas aat aax af- afa aff afi afn afo afs aft afx ai- aia aif aii ain aio ais ait aix an- ana anf ani ann ano ans ant anx aoa aof aoi aon aoo aos aot aox as- asa asf asi asn aso ass ast asx at- ata atf ati atn ato ats att atx ax- axa axi axn axo axs axt axx faa faf fai fan fao fas fat fax ffa fff ffi ffn ffo ffs fft ffx fia fif fii fin fis fit fix fna fnf fni fnn fns fnt fnx foa fof foi fon foo fos fot fox fsa fsf fsi fsn fso fss fst fsx fta ftf fti ftn fto fts ftt ftx fxi fxs fxt fxx i-f ia- iaa iaf iai ian iao ias iat ifa iff ifi ifn ifo ifs ift ifx iia iif iii iin iio iis iit iix in- ina inf ini inn ino ins int inx io- ioa iof ioi ion ioo ios iot is- isa isf isi isn iso iss ist ita itf iti itn ito its itt itx ixi ixn n-i naa naf nai nan nao nas nat nax nfa nff nfi nfn nfo nfs nft nia nif nii nin nio nis nit nix nna nnf nni nnn nno nns nnt no- noa nof noi non noo nos not nox nsa nsf nsi nsn nso nss nst nsx nta ntf nti ntn nto nts ntt ntx nxt o-i oaa oaf oai oan oao oas oat oax of- ofa off ofi ofn ofo ofs oft ofx oia oif oii oin oio ois oit on- ona onf oni onn ono ons ont onx oo- ooa oof ooi oon ooo oos oot oox os- osa osf osi osn oso oss ost osx ot- ota otf oti otn oto ots ott ox- oxa oxf oxi oxn oxo oxt oxx saa saf sai san sao sas sat sax sfa sff sfi sfn sfo sfs sft sfx sia sif sii sin sio sis sit six sna snf sni snn sno sns snt soa sof soi son soo sos sot sox ss- ssa ssf ssi ssn sso sss sst ssx sta stf sti stn sto sts stt stx sxi sxn sxs sxt t-x taa taf tai tan tao tas tat tax tfa tff tfi tfn tfo tfs tft tfx tia tif tii tin tio tis tit tix tna tnf tni tnn tno tns tnt tnx to- toa tof toi ton too tos tot tox tsa tsf tsi tsn tso tss tst tsx tta ttf tti ttn tto tts ttt ttx txf txi txn txs txt xaa xaf xan xas xat xfa xfn xfs xft xfx xia xii xin xio xis xit xix xna xno xns xoa xof xoi xon xoo xos xot xox xsa xsi xss xst xtf xti xts xtx xxi xxo xxx