a-a a-i a-t aaa aaf aag aai aak aan aao aar aat aax af- afa aff afg afi afk afn afo afr aft afx ag- aga agf agg agi agk agn ago agr agt agx ai- aia aif aig aii aik ain aio air ait aix aka akg aki akk akn ako akr an- ana anf ang ani ank ann ano anr ant anx aoa aof aog aoi aok aon aoo aor aot aox ar- ara arf arg ari ark arn aro arr art arx at- ata atf atg ati atn ato atr att atx ax- axa axi axk axn axo axr axt axx faa faf fag fai fak fan fao far fat fax ffa fff ffg ffi ffk ffn ffo ffr fft ffx fga fgf fgg fgi fgn fgr fgt fia fif fig fii fik fin fir fit fix fka fkf fkg fki fkk fkt fna fnf fng fni fnk fnn fnr fnt fnx foa fof fog foi fok fon foo for fot fox fra frf frg fri frk frn fro frr frt fta ftf ftg fti ftk ftn fto ftr ftt ftx fxg fxi fxr fxt fxx gaa gaf gag gai gak gan gao gar gat gfa gff gfi gfk gfo gfr gft gfx gga ggg ggi ggn ggo ggr ggt gia gif gig gii gik gin gio gir git gka gkn gko gkt gna gnf gni gnn gno gnr gnt goa gof gog goi gok gon goo gor got gox gra grf grg gri grk grn gro grr grt grx gta gtf gtg gti gtk gtn gto gtr gtt gtx gxa gxf gxt i-f ia- iaa iaf iag iai ian iao iar iat ifa iff ifg ifi ifn ifo ifr ift ifx iga igf igg igi igk ign igo igr igt iia iif iii iin iio iir iit iix ika ikf iki ikk iko ikr ikt ikx in- ina inf ing ini ink inn ino inr int inx io- ioa iof iog ioi ion ioo ior iot ir- ira irf irg iri irk irn iro irr irt irx ita itf itg iti itk itn ito itt itx ixi ixn k-t ka- kaa kaf kag kai kak kan kao kar kat kax kfa kff kfg kfi kfo kfx kga kgf kgi kgo kgx kia kif kig kii kik kin kio kir kit kix kki kkk kkn kkr kkt kn- kna knf kng kni knk knn kno knr knt knx koa kof kog koi kok kon koo kor kot kra krf krg kri krk krn kro krr krt kta ktf ktg ktk ktn kto ktr ktt kxo n-i naa naf nag nai nak nan nao nar nat nax nfa nff nfi nfk nfn nfo nfr nft nga ngf ngg ngi ngk ngn ngo ngt nia nif nig nii nik nin nio nir nit nix nka nkf nki nkk nkn nko nkr nkt nna nnf nng nni nnk nnn nno nnt no- noa nof nog noi nok non noo nor not nox nra nrf nrg nri nrk nrn nro nrr nrt nrx nta ntf ntg nti ntk ntn nto ntr ntt ntx nxt o-i oaa oaf oag oai oak oan oao oar oat oax of- ofa off ofg ofi ofn ofo ofr oft ofx oga ogf ogg ogi ogn ogo ogt ogx oia oif oii oik oin oio oir oit oka okg oki okk oko okr on- ona onf ong oni onk onn ono onr ont onx oo- ooa oof oog ooi ook oon ooo oor oot oox or- ora orf org ori ork orn oro orr ort orx ot- ota otf otg oti otk otn oto otr ott ox- oxa oxf oxi oxn oxo oxt oxx ra- raa raf rag rai rak ran rao rar rat rax rfa rff rfg rfi rfk rfn rfo rfr rft rga rgf rgg rgi rgk rgn rgo rgr rgt rgx ria rif rig rii rik rin rio rir rit rix rkf rkg rkk rko rkt rna rng rni rnn rno rnr rnt roa rof rog roi rok ron roo ror rot rox rra rrf rrg rri rrk rrn rrr rrt rta rtf rtg rti rtk rtn rto rtr rtt rtx rxr t-x taa taf tag tai tak tan tao tar tat tax tfa tff tfg tfi tfk tfn tfo tfr tft tfx tga tgf tgg tgi tgk tgn tgo tgr tgt tia tif tig tii tik tin tio tir tit tix tka tkg tkk tko tkr tkt tna tnf tng tni tnk tnn tno tnr tnt tnx to- toa tof tog toi tok ton too tor tot tox tra trf trg tri trk trn tro trr trt trx tta ttf ttg tti ttk ttn tto ttr ttt ttx txf txi txk txn txt xaa xaf xag xak xan xar xat xfa xfn xft xfx xgi xia xii xin xio xit xix xna xnk xno xoa xof xog xoi xok xon xoo xor xot xox xrf xrt xrx xtf xti xtr xtx xxi xxo xxx