-er -ic a-a a-c a-i a-t aaa aac aae aai aak aao aar aas aat ac- aca acc ace aci ack aco acr acs act aea aec aee aei aek aeo aer aes aet ai- aia aic aie aii aik aio air ais ait aka akc ake aki akk ako akr aks aoa aoc aoe aoi aok aoo aor aos aot ar- ara arc are ari ark aro arr ars art as- asa asc ase asi ask aso asr ass ast at- ata atc ate ati ato atr ats att c-- caa cac cae cai cak cao car cas cat cca ccc cce cci cck cco ccr ccs cct ce- cea cec cee cei cek ceo cer ces cet ci- cia cic cie cii cik cio cir cis cit cka ckc cki cko cks ckt co- coa coc coe coi cok coo cor cos cot cra crc cre cri crk cro crr crs crt csa csc cse csi csk cso csr css cst cta ctc cte cti ctk cto ctr cts ctt eaa eac eae eai eak eao ear eas eat ec- eca ecc ece eci eck eco ecr ecs ect eea eec eee eek eeo eer ees eet eia eic eie eii eik eio eir eis eit eka ekc eke eki eko ekr eks ekt eo- eoa eoc eoe eoi eok eoo eor eos eot era erc ere eri erk ero err ers ert es- esa esc ese esi esk eso esr ess est eta etc ete eti etk eto etr ets ett ia- iaa iac iae iai iao iar ias iat ica icc ice ici ick ico icr ics ict ie- iea iec iee iei iek ier ies iet iia iic iie iii iio iir iis iit ika ikc ike iki ikk iko ikr iks ikt io- ioa ioc ioe ioi ioo ior ios iot ir- ira irc ire iri irk iro irr irs irt is- isa isc ise isi isk iso isr iss ist ita itc ite iti itk ito its itt k-t ka- kaa kac kae kai kak kao kar kas kat kca kcc kce kci kck kcr kcs kct ke- kea kec kee kei kek keo ker kes ket kia kic kie kii kik kio kir kis kit kkc kke kki kkk kkr kks kkt koa koc koe koi kok koo kor kos kot kra krc kri krk kro krr krs krt ksa ksc kse ksi ksk kso ksr kss kst kta ktc kte ktk kto ktr kts ktt o-i oaa oac oae oai oak oao oar oas oat oc- oca occ oci ock oco ocr ocs oct oea oec oee oei oeo oer oes oet oia oic oie oii oik oio oir ois oit oka okc oke oki okk oko okr oks oo- ooa ooc ooi ook ooo oor oos oot or- ora orc ore ori ork oro orr ors ort os- osa osc ose osi osk oso osr oss ost ot- ota otc ote oti otk oto otr ots ott ra- raa rac rae rai rak rao rar ras rat rca rcc rce rci rco rcr rcs rct re- rea rec ree rei rek reo rer res ret ria ric rie rii rik rio rir ris rit rkc rke rkk rko rks rkt roa roc roe roi rok roo ror ros rot rra rrc rri rrk rrr rrs rrt rsa rsc rse rsi rsk rso rsr rss rst rta rtc rte rti rtk rto rtr rts rtt saa sac sae sai sak sao sar sas sat sca scc sce sci sck sco scr scs sct se- sea sec see sei sek seo ser ses set sia sic sie sii sik sio sir sis sit sk- ska skc ske ski skk sko skr sks skt soa soc soe soi sok soo sor sos sot sr- sra src sre sri srk sro srr srs srt ss- ssa ssc sse ssi ssk sso ssr sss sst sta stc ste sti stk sto str sts stt taa tac tae tai tak tao tar tas tat tca tcc tce tci tck tco tcr tcs tct te- tea tec tee tei tek teo ter tes tet tia tic tie tii tik tio tir tis tit tka tkc tke tkk tko tkr tks tkt to- toa toc toe toi tok too tor tos tot tra trc tre tri trk tro trr trs trt tsa tsc tse tsi tsk tso tsr tss tst tta ttc tte tti ttk tto ttr tts ttt