-er -ic a-a a-c a-i a-t aaa aac aae aai aak aao aar aat ac- aca acc ace aci ack aco acr act aea aec aee aei aek aeo aer aet ai- aia aic aie aii aik aio air ait aka akc ake aki akk ako akr aoa aoc aoe aoi aok aoo aor aot ar- ara arc are ari ark aro arr art at- ata atc ate ati ato atr att c-- caa cac cae cai cak cao car cat cca ccc cce cci cck cco ccr cct ce- cea cec cee cei cek ceo cer cet ci- cia cic cie cii cik cio cir cit cka ckc cki cko ckt co- coa coc coe coi cok coo cor cot cra crc cre cri crk cro crr crt cta ctc cte cti ctk cto ctr ctt eaa eac eae eai eak eao ear eat ec- eca ecc ece eci eck eco ecr ect eea eec eee eek eeo eer eet eia eic eie eii eik eio eir eit eka ekc eke eki eko ekr ekt eo- eoa eoc eoe eoi eok eoo eor eot era erc ere eri erk ero err ert eta etc ete eti etk eto etr ett ia- iaa iac iae iai iao iar iat ica icc ice ici ick ico icr ict ie- iea iec iee iei iek ier iet iia iic iie iii iio iir iit ika ikc ike iki ikk iko ikr ikt io- ioa ioc ioe ioi ioo ior iot ir- ira irc ire iri irk iro irr irt ita itc ite iti itk ito itt k-t ka- kaa kac kae kai kak kao kar kat kca kcc kce kci kck kcr kct ke- kea kec kee kei kek keo ker ket kia kic kie kii kik kio kir kit kkc kke kki kkk kkr kkt koa koc koe koi kok koo kor kot kra krc kri krk kro krr krt kta ktc kte ktk kto ktr ktt o-i oaa oac oae oai oak oao oar oat oc- oca occ oci ock oco ocr oct oea oec oee oei oeo oer oet oia oic oie oii oik oio oir oit oka okc oke oki okk oko okr oo- ooa ooc ooi ook ooo oor oot or- ora orc ore ori ork oro orr ort ot- ota otc ote oti otk oto otr ott ra- raa rac rae rai rak rao rar rat rca rcc rce rci rco rcr rct re- rea rec ree rei rek reo rer ret ria ric rie rii rik rio rir rit rkc rke rkk rko rkt roa roc roe roi rok roo ror rot rra rrc rri rrk rrr rrt rta rtc rte rti rtk rto rtr rtt taa tac tae tai tak tao tar tat tca tcc tce tci tck tco tcr tct te- tea tec tee tei tek teo ter tet tia tic tie tii tik tio tir tit tka tkc tke tkk tko tkr tkt to- toa toc toe toi tok too tor tot tra trc tre tri trk tro trr trt tta ttc tte tti ttk tto ttr ttt