-ic a-a a-c a-i a-t aaa aac aae aai aak aao aas aat aax ac- aca acc ace aci ack aco acs act acx aea aec aee aei aek aeo aes aet aex ai- aia aic aie aii aik aio ais ait aix aka akc ake aki akk ako aks aoa aoc aoe aoi aok aoo aos aot aox as- asa asc ase asi ask aso ass ast asx at- ata atc ate ati ato ats att atx ax- axa axe axi axk axo axs axt axx c-- caa cac cae cai cak cao cas cat cax cca ccc cce cci cck cco ccs cct ccx ce- cea cec cee cei cek ceo ces cet cex ci- cia cic cie cii cik cio cis cit cix cka ckc cki cko cks ckt ckx co- coa coc coe coi cok coo cos cot cox csa csc cse csi csk cso css cst csx cta ctc cte cti ctk cto cts ctt ctx cxc cxi cxk cxo cxs cxt cxx eaa eac eae eai eak eao eas eat eax ec- eca ecc ece eci eck eco ecs ect ecx eea eec eee eek eeo ees eet eex eia eic eie eii eik eio eis eit eix eka ekc eke eki eko eks ekt eo- eoa eoc eoe eoi eok eoo eos eot es- esa esc ese esi esk eso ess est esx eta etc ete eti etk eto ets ett etx ex- exa exc exe exi exo exs ext exx ia- iaa iac iae iai iao ias iat ica icc ice ici ick ico ics ict ie- iea iec iee iei iek ies iet iex iia iic iie iii iio iis iit iix ika ikc ike iki ikk iko iks ikt ikx io- ioa ioc ioe ioi ioo ios iot is- isa isc ise isi isk iso iss ist ita itc ite iti itk ito its itt itx ixc ixe ixi k-t ka- kaa kac kae kai kak kao kas kat kax kca kcc kce kci kck kcs kct kcx ke- kea kec kee kei kek keo kes ket kex kia kic kie kii kik kio kis kit kix kkc kke kki kkk kks kkt koa koc koe koi kok koo kos kot ksa ksc kse ksi ksk kso kss kst kta ktc kte ktk kto kts ktt kxo o-i oaa oac oae oai oak oao oas oat oax oc- oca occ oci ock oco ocs oct ocx oea oec oee oei oeo oes oet oex oia oic oie oii oik oio ois oit oka okc oke oki okk oko oks oo- ooa ooc ooi ook ooo oos oot oox os- osa osc ose osi osk oso oss ost osx ot- ota otc ote oti otk oto ots ott ox- oxa oxc oxi oxo oxt oxx saa sac sae sai sak sao sas sat sax sca scc sce sci sck sco scs sct scx se- sea sec see sei sek seo ses set sex sia sic sie sii sik sio sis sit six sk- ska skc ske ski skk sko sks skt skx soa soc soe soi sok soo sos sot sox ss- ssa ssc sse ssi ssk sso sss sst ssx sta stc ste sti stk sto sts stt stx sxc sxi sxs sxt t-x taa tac tae tai tak tao tas tat tax tca tcc tce tci tck tco tcs tct tcx te- tea tec tee tei tek teo tes tet tex tia tic tie tii tik tio tis tit tix tka tkc tke tkk tko tks tkt to- toa toc toe toi tok too tos tot tox tsa tsc tse tsi tsk tso tss tst tsx tta ttc tte tti ttk tto tts ttt ttx txe txi txk txs txt xaa xac xak xas xat xci xcx xee xes xet xex xia xic xie xii xio xis xit xix xke xks xoa xoc xoi xok xoo xos xot xox xsa xsc xsi xss xst xtc xti xts xtx xxi xxo xxx