-er -ic a-a a-c a-i aaa aac aae aai aak aao aar aav ac- aca acc ace aci ack aco acr acv aea aec aee aei aek aeo aer aev ai- aia aic aie aii aik aio air aiv aka akc ake aki akk ako akr akv aoa aoc aoe aoi aok aoo aor aov ar- ara arc are ari ark aro arr arv av- ava avc ave avi avk avo avr c-- caa cac cae cai cak cao car cav cca ccc cce cci cck cco ccr ccv ce- cea cec cee cei cek ceo cer cev ci- cia cic cie cii cik cio cir civ cka ckc cki cko co- coa coc coe coi cok coo cor cov cra crc cre cri crk cro crr crv cva cvc cve cvi cvk cvo cvr cvv eaa eac eae eai eak eao ear eav ec- eca ecc ece eci eck eco ecr ecv eea eec eee eek eeo eer eev eia eic eie eii eik eio eir eiv eka ekc eke eki eko ekr ekv eo- eoa eoc eoe eoi eok eoo eor era erc ere eri erk ero err erv eva evc eve evi evo evr evv i-v ia- iaa iac iae iai iao iar iav ica icc ice ici ick ico icr icv ie- iea iec iee iei iek ier iev iia iic iie iii iio iir ika ikc ike iki ikk iko ikr ikv io- ioa ioc ioe ioi ioo ior iov ir- ira irc ire iri irk iro irr irv iva ivc ive ivi ivo ivr ivv ka- kaa kac kae kai kak kao kar kav kca kcc kce kci kck kcr ke- kea kec kee kei kek keo ker kev kia kic kie kii kik kio kir kiv kkc kke kki kkk kkr kkv koa koc koe koi kok koo kor kra krc kri krk kro krr krv kva kvi kvk kvo kvr kvv o-i oaa oac oae oai oak oao oar oav oc- oca occ oci ock oco ocr ocv oea oec oee oei oeo oer oia oic oie oii oik oio oir oiv oka okc oke oki okk oko okr oo- ooa ooc ooi ook ooo oor oov or- ora orc ore ori ork oro orr orv ov- ova ovc ove ovi ovo ovv ra- raa rac rae rai rak rao rar rav rca rcc rce rci rco rcr rcv re- rea rec ree rei rek reo rer rev ria ric rie rii rik rio rir riv rkc rke rkk rko rkv roa roc roe roi rok roo ror rov rra rrc rri rrk rrr rva rvc rve rvi rvo rvr rvv v-a v-e vaa vac vae vai vak vao var vav vca vcc vce vci vco vcr vea vec vee vei vek veo ver vi- via vic vie vii vik vio vir viv vka voa voc voe voi vok voo vor vov vra vrc vre vri vrk vrr vva vvc vvi vvo vvr vvv