-er -ic a-a a-b a-c a-i aaa aab aac aae aai aak aam aao aar ab- aba abb abc abe abi abk abm abo abr ac- aca acb acc ace aci ack acm aco acr aea aeb aec aee aei aek aem aeo aer ai- aia aib aic aie aii aik aim aio air aka akb akc ake aki akk akm ako akr ama amb amc ame ami amk amm amo amr aoa aob aoc aoe aoi aok aom aoo aor ar- ara arb arc are ari ark arm aro arr baa bab bac bae bai bak bam bao bar bba bbb bbc bbe bbi bbk bbm bbo bbr bca bcb bcc bce bci bck bcm bco bcr be- bea beb bec bee bei bek bem beo ber bi- bia bib bic bie bii bik bim bio bir bka bkb bkc bke bkk bkm bko bkr bma bmb bmc bme bmi bmk bmm bmo bmr boa bob boc boe boi bok bom boo bor bra brb bre bri brk brm bro brr c-- caa cab cac cae cai cak cam cao car cba cbb cbc cbe cbi cbk cbm cbo cbr cca ccb ccc cce cci cck ccm cco ccr ce- cea ceb cec cee cei cek cem ceo cer ci- cia cib cic cie cii cik cim cio cir cka ckb ckc cki ckm cko cma cmb cmc cme cmi cmk cmm cmo cmr co- coa cob coc coe coi cok com coo cor cra crb crc cre cri crk crm cro crr eaa eab eac eae eai eak eam eao ear eba ebb ebc ebe ebi ebk ebm ebo ebr ec- eca ecb ecc ece eci eck ecm eco ecr eea eeb eec eee eek eem eeo eer eia eib eic eie eii eik eim eio eir eka ekb ekc eke eki eko ekr em- ema emb emc eme emi emk emm emo emr eo- eoa eob eoc eoe eoi eok eom eoo eor era erb erc ere eri erk erm ero err ia- iaa iab iac iae iai iam iao iar iba ibb ibc ibe ibi ibk ibm ibo ibr ica icb icc ice ici ick icm ico icr ie- iea iec iee iei iek iem ier iia iib iic iie iii iim iio iir ika ikb ikc ike iki ikk iko ikr im- ima imb imc ime imi imm imo io- ioa iob ioc ioe ioi iom ioo ior ir- ira irb irc ire iri irk irm iro irr ka- kaa kab kac kae kai kak kam kao kar kba kbb kbc kbe kbi kbk kbm kbo kbr kca kcb kcc kce kci kck kcm kcr ke- kea keb kec kee kei kek kem keo ker kia kib kic kie kii kik kim kio kir kkb kkc kke kki kkk kkm kkr kma kmb kmc kme kmi kmk kmm kmo koa kob koc koe koi kok kom koo kor kra krc kri krk kro krr m-o m-r maa mab mac mae mai mak mam mao mar mba mbb mbc mbe mbi mbk mbm mbo mbr mc- mca mcb mcc mce mci mck mcm mco mcr mea meb mec mee mei mek mem meo mer mi- mia mib mic mie mii mik mim mio mir mka mkb mkc mke mkk mkm mko mkr mma mmb mmc mme mmi mmk mmm mmo mmr moa mob moc moe moi mok mom moo mor mra mrb mrc mre mri mrk mrm mro mrr o-i oaa oab oac oae oai oak oam oao oar ob- oba obb obc obe obi obk obm obo obr oc- oca ocb occ oci ock ocm oco ocr oea oeb oec oee oei oem oeo oer oia oib oic oie oii oik oim oio oir oka okb okc oke oki okk oko okr om- oma omb omc ome omi omm omo omr oo- ooa oob ooc ooi ook oom ooo oor or- ora orb orc ore ori ork orm oro orr ra- raa rab rac rae rai rak ram rao rar rba rbb rbc rbe rbi rbk rbm rbo rbr rca rcb rcc rce rci rcm rco rcr re- rea reb rec ree rei rek rem reo rer ria rib ric rie rii rik rim rio rir rkb rkc rke rkk rkm rko rma rmb rmc rme rmi rmm rmo rmr roa rob roc roe roi rok rom roo ror rra rrb rrc rri rrk rrm rrr

a-ak a-be a-ii a-ok aaaa aaab aaac aaae aaai aaam aaar aaba aabb aabc aabi aabm aaca aacb aacc aace aaci aack aacm aaco aacr aaea aaec aaem aaib aaic aaii aaka aake aama aamb aamc aame aami aamo aamr aaoe aaoo aara aarc aare aari aarm aaro abaa abab abac abae abai abak abam abar abb- abba abbb abbe abbi abbo abbr abca abcb abcc abci abcr abec abee aber abia abib abic abie abim abir abma abmb abmc aboa abob abok aboo abor abra abrc abri abro acaa acab acac acae acai acar acba acca accc acce acci accm acco ace- acea acec acek acem acer aci- acia acic acie acim acir acke acma acmc acme acmi acoa acoe acom acor acr- acra acrc acre acri acrm acro acrr aeac aebi aecb aeci aeer aeio aeka aeom aer- aera aerc aeri aero aiai aiba aibo aica aicc aice aicr aiea aiee aiia aiib aiic aiir aika aike aiki aiko aimc aime aimi aimm aimo aioc aioi aira aire airi airo akaa akae akai akam akao akar akca akee aker akia akie akik akim akio akir akka akki akko akok akom akr- akra akre amaa amac amae amai amam amar amb- amba ambe ambi ambo ambr amca amcc amco amec amee amei amer amia amib amic amie amii amik amir amka amm- amma amme ammi ammo amob amoc amoi amok amoo amor amra amrc amri amro aoba aoca aoce aoki aoma aora aorb arab arac arae arai arak aram arar arba arbe arbi arc- arca arce arci arcm arco area arec aree arei arek arem areo aria arib