-er -ic a-a a-c a-i a-t aaa aac aad aae aai aak aar aas aat ac- aca acc acd ace aci ack acr acs act ad- ada adc add ade adi adk adr ads adt aea aec aed aee aei aek aer aes aet ai- aia aic aid aie aii aik air ais ait aka akc akd ake aki akk akr aks ar- ara arc ard are ari ark arr ars art as- asa asc asd ase asi ask asr ass ast at- ata atc atd ate ati atr ats att c-- caa cac cad cae cai cak car cas cat cca ccc ccd cce cci cck ccr ccs cct cda cdc cdd cde cdi cdk cdr cds cdt ce- cea cec ced cee cei cek cer ces cet ci- cia cic cid cie cii cik cir cis cit cka ckc ckd cki cks ckt cra crc crd cre cri crk crr crs crt csa csc csd cse csi csk csr css cst cta ctc ctd cte cti ctk ctr cts ctt daa dac dad dae dai dak dar das dat dca dcc dcd dce dci dck dcr dcs dct dda ddc ddd dde ddi ddk ddr dds ddt de- dea dec ded dee dei dek der des det di- dia dic did die dii dik dir dis dit dka dkc dke dki dkk dkr dks dkt dra drc drd dre dri drk drr drs drt dsa dsc dsd dse dsi dsk dsr dss dst dta dtc dtd dte dti dtk dtr dts dtt eaa eac ead eae eai eak ear eas eat ec- eca ecc ecd ece eci eck ecr ecs ect ed- eda edc edd ede edi edk edr eds edt eea eec eed eee eek eer ees eet eia eic eid eie eii eik eir eis eit eka ekc ekd eke eki ekr eks ekt era erc erd ere eri erk err ers ert es- esa esc esd ese esi esk esr ess est eta etc etd ete eti etk etr ets ett i-d ia- iaa iac iad iae iai iar ias iat ica icc icd ice ici ick icr ics ict ida idc idd ide idi idk idr ids idt ie- iea iec ied iee iei iek ier ies iet iia iic iid iie iii iir iis iit ika ikc ike iki ikk ikr iks ikt ir- ira irc ird ire iri irk irr irs irt is- isa isc isd ise isi isk isr iss ist ita itc itd ite iti itk its itt k-t ka- kaa kac kad kae kai kak kar kas kat kca kcc kcd kce kci kck kcr kcs kct kda kdc kde kdk kdr kds kdt ke- kea kec ked kee kei kek ker kes ket kia kic kid kie kii kik kir kis kit kkc kke kki kkk kkr kks kkt kra krc krd kri krk krr krs krt ksa ksc ksd kse ksi ksk ksr kss kst kta ktc kte ktk ktr kts ktt ra- raa rac rad rae rai rak rar ras rat rca rcc rcd rce rci rcr rcs rct rda rdc rdd rde rdi rdr rds rdt re- rea rec red ree rei rek rer res ret ria ric rid rie rii rik rir ris rit rkc rke rkk rks rkt rra rrc rrd rri rrk rrr rrs rrt rsa rsc rsd rse rsi rsk rsr rss rst rta rtc rtd rte rti rtk rtr rts rtt saa sac sad sae sai sak sar sas sat sca scc scd sce sci sck scr scs sct sda sdc sdd sde sdi sdk sdr sds sdt se- sea sec sed see sei sek ser ses set sia sic sid sie sii sik sir sis sit sk- ska skc skd ske ski skk skr sks skt sr- sra src srd sre sri srk srr srs srt ss- ssa ssc ssd sse ssi ssk ssr sss sst sta stc std ste sti stk str sts stt taa tac tad tae tai tak tar tas tat tca tcc tcd tce tci tck tcr tcs tct tda tdc tdd tde tdi tdk tdr tds tdt te- tea tec ted tee tei tek ter tes tet tia tic tid tie tii tik tir tis tit tka tkc tke tkk tkr tks tkt tra trc trd tre tri trk trr trs trt tsa tsc tsd tse tsi tsk tsr tss tst tta ttc ttd tte tti ttk ttr tts ttt