a-a a-i aaa aaf aai aam aan aao aax af- afa aff afi afm afn afo afx ai- aia aif aii aim ain aio aix ama amf ami amm amn amo amx an- ana anf ani anm ann ano anx aoa aof aoi aom aon aoo aox ax- axa axi axm axn axo axx faa faf fai fam fan fao fax ffa fff ffi ffm ffn ffo ffx fia fif fii fim fin fix fma fmf fmi fmm fmn fmo fmx fna fnf fni fnm fnn fnx foa fof foi fom fon foo fox fxi fxm fxx i-f ia- iaa iaf iai iam ian iao ifa iff ifi ifm ifn ifo ifx iia iif iii iim iin iio iix im- ima imf imi imm imn imo imx in- ina inf ini inm inn ino inx io- ioa iof ioi iom ion ioo ixi ixn m-f m-o maa maf mai mam man mao max mfa mff mfi mfm mfn mfo mi- mia mif mii mim min mio mix mma mmf mmi mmm mmn mmo mmx mna mnf mni mnm mnn mno moa mof moi mom mon moo mox mxa mxi mxn n-i naa naf nai nam nan nao nax nfa nff nfi nfn nfo nia nif nii nim nin nio nix nma nmi nmm nmn nmo nna nnf nni nnm nnn nno no- noa nof noi nom non noo nox o-i oaa oaf oai oam oan oao oax of- ofa off ofi ofm ofn ofo ofx oia oif oii oim oin oio om- oma omf omi omm omn omo omx on- ona onf oni onn ono onx oo- ooa oof ooi oom oon ooo oox ox- oxa oxf oxi oxn oxo oxx xaa xaf xam xan xfa xfm xfn xfx xia xii xin xio xix xma xmf xmi xmm xmo xmx xna xno xoa xof xoi xom xon xoo xox xxi xxo xxx