-al -ol a-a a-i a-t aaa aaf aai aal aao aas aat aax af- afa aff afi afl afo afs aft afx ai- aia aif aii ail aio ais ait aix al- ala alf ali all alo als alt alx aoa aof aoi aol aoo aos aot aox as- asa asf asi asl aso ass ast asx at- ata atf ati atl ato ats att atx ax- axa axi axl axo axs axt axx faa faf fai fal fao fas fat fax ffa fff ffi ffl ffo ffs fft ffx fia fif fii fil fis fit fix fla flf fli fll flo fls flt flx foa fof foi fol foo fos fot fox fsa fsf fsi fsl fso fss fst fsx fta ftf fti ftl fto fts ftt ftx fxi fxs fxt fxx i-f ia- iaa iaf iai ial iao ias iat ifa iff ifi ifl ifo ifs ift ifx iia iif iii iil iio iis iit iix il- ila ilf ili ill ilo ils ilt ilx io- ioa iof ioi iol ioo ios iot is- isa isf isi isl iso iss ist ita itf iti itl ito its itt itx ixi ixl la- laa laf lai lal lao las lat lax lfa lff lfi lfl lfo lfs lft lfx lia lif lii lil lio lis lit lix lla llf lli lll llo lls llt loa lof loi lol loo los lot lox lsa lsf lsi lsl lso lss lst lta ltf lti ltl lto lts ltt ltx lxi lxo lxx o-i oaa oaf oai oal oao oas oat oax of- ofa off ofi ofl ofo ofs oft ofx oia oif oii oil oio ois oit ola olf oli oll olo ols olt oo- ooa oof ooi ool ooo oos oot oox os- osa osf osi osl oso oss ost osx ot- ota otf oti otl oto ots ott ox- oxa oxf oxi oxo oxt oxx saa saf sai sal sao sas sat sax sfa sff sfi sfl sfo sfs sft sfx sia sif sii sil sio sis sit six sla slf sli sll slo sls slt slx soa sof soi sol soo sos sot sox ss- ssa ssf ssi ssl sso sss sst ssx sta stf sti stl sto sts stt stx sxi sxl sxs sxt t-x taa taf tai tal tao tas tat tax tfa tff tfi tfl tfo tfs tft tfx tia tif tii til tio tis tit tix tla tlf tli tll tlo tls tlt tlx to- toa tof toi tol too tos tot tox tsa tsf tsi tsl tso tss tst tsx tta ttf tti ttl tto tts ttt ttx txf txi txl txs txt xaa xaf xal xas xat xfa xfl xfs xft xfx xia xii xio xis xit xix xla xlf xli xls xlt xoa xof xoi xoo xos xot xox xsa xsi xsl xss xst xtf xti xts xtx xxi xxl xxo xxx