-er -ic -ji a-a a-c a-i aaa aac aae aai aaj aak aao aar ac- aca acc ace aci acj ack aco acr aea aec aee aei aej aek aeo aer ai- aia aic aie aii aik aio air aja ajc aje aji ajj ajk ajo ajr aka akc ake aki akj akk ako akr aoa aoc aoe aoi aoj aok aoo aor ar- ara arc are ari arj ark aro arr c-- c-j caa cac cae cai caj cak cao car cca ccc cce cci ccj cck cco ccr ce- cea cec cee cei cej cek ceo cer ci- cia cic cie cii cij cik cio cir cja cjc cjk cjr cka ckc cki cko co- coa coc coe coi coj cok coo cor cra crc cre cri crj crk cro crr eaa eac eae eai eaj eak eao ear ec- eca ecc ece eci ecj eck eco ecr eea eec eee eek eeo eer eia eic eie eii eij eik eio eir eja ejc eji ejo eka ekc eke eki eko ekr eo- eoa eoc eoe eoi eok eoo eor era erc ere eri erk ero err ia- iaa iac iae iai iao iar ica icc ice ici icj ick ico icr ie- iea iec iee iei iej iek ier iia iic iie iii iij iio iir ija ijc ije iji ijk ijo ika ikc ike iki ikk iko ikr io- ioa ioc ioe ioi ioj ioo ior ir- ira irc ire iri irj irk iro irr j-i jaa jac jae jai jaj jak jao jar jca jcc jce jci jck jco jcr jea jec jee jei jej jek jeo jer jia jic jie jii jij jio jir jja jjc jjj jjk jjr jka jkk jko jkr joa joc joe joi joj jok joo jor jra jrc jri jrk jro jrr ka- kaa kac kae kai kaj kak kao kar kca kcc kce kci kck kcr ke- kea kec kee kei kek keo ker kia kic kie kii kij kik kio kir kjc kje kji kjr kkc kke kki kkk kkr koa koc koe koi kok koo kor kra krc kri krk kro krr o-i oaa oac oae oai oaj oak oao oar oc- oca occ oci ocj ock oco ocr oea oec oee oei oeo oer oia oic oie oii oik oio oir oja ojc oje oji ojo oka okc oke oki okj okk oko okr oo- ooa ooc ooi ook ooo oor or- ora orc ore ori ork oro orr ra- raa rac rae rai raj rak rao rar rca rcc rce rci rcj rco rcr re- rea rec ree rei rek reo rer ria ric rie rii rik rio rir rja rjc rjk rjr rkc rke rkk rko roa roc roe roi roj rok roo ror rra rrc rri rrk rrr