-er -ic a-a a-b a-c a-i aaa aab aac aae aai aam aao aar ab- aba abb abc abe abi abm abo abr ac- aca acb acc ace aci acm aco acr aea aeb aec aee aei aem aeo aer ai- aia aib aic aie aii aim aio air ama amb amc ame ami amm amo amr aoa aob aoc aoe aoi aom aoo aor ar- ara arb arc are ari arm aro arr baa bab bac bae bai bam bao bar bba bbb bbc bbe bbi bbm bbo bbr bca bcb bcc bce bci bcm bco bcr be- bea beb bec bee bei bem beo ber bi- bia bib bic bie bii bim bio bir bma bmb bmc bme bmi bmm bmo bmr boa bob boc boe boi bom boo bor bra brb bre bri brm bro brr c-- caa cab cac cae cai cam cao car cba cbb cbc cbe cbi cbm cbo cbr cca ccb ccc cce cci ccm cco ccr ce- cea ceb cec cee cei cem ceo cer ci- cia cib cic cie cii cim cio cir cma cmb cmc cme cmi cmm cmo cmr co- coa cob coc coe coi com coo cor cra crb crc cre cri crm cro crr eaa eab eac eae eai eam eao ear eba ebb ebc ebe ebi ebm ebo ebr ec- eca ecb ecc ece eci ecm eco ecr eea eeb eec eee eem eeo eer eia eib eic eie eii eim eio eir em- ema emb emc eme emi emm emo emr eo- eoa eob eoc eoe eoi eom eoo eor era erb erc ere eri erm ero err ia- iaa iab iac iae iai iam iao iar iba ibb ibc ibe ibi ibm ibo ibr ica icb icc ice ici icm ico icr ie- iea iec iee iei iem ier iia iib iic iie iii iim iio iir im- ima imb imc ime imi imm imo io- ioa iob ioc ioe ioi iom ioo ior ir- ira irb irc ire iri irm iro irr m-o m-r maa mab mac mae mai mam mao mar mba mbb mbc mbe mbi mbm mbo mbr mc- mca mcb mcc mce mci mcm mco mcr mea meb mec mee mei mem meo mer mi- mia mib mic mie mii mim mio mir mma mmb mmc mme mmi mmm mmo mmr moa mob moc moe moi mom moo mor mra mrb mrc mre mri mrm mro mrr o-i oaa oab oac oae oai oam oao oar ob- oba obb obc obe obi obm obo obr oc- oca ocb occ oci ocm oco ocr oea oeb oec oee oei oem oeo oer oia oib oic oie oii oim oio oir om- oma omb omc ome omi omm omo omr oo- ooa oob ooc ooi oom ooo oor or- ora orb orc ore ori orm oro orr ra- raa rab rac rae rai ram rao rar rba rbb rbc rbe rbi rbm rbo rbr rca rcb rcc rce rci rcm rco rcr re- rea reb rec ree rei rem reo rer ria rib ric rie rii rim rio rir rma rmb rmc rme rmi rmm rmo rmr roa rob roc roe roi rom roo ror rra rrb rrc rri rrm rrr

a-be a-ii aaaa aaab aaac aaae aaai aaam aaar aaba aabb aabc aabi aabm aaca aacb aacc aace aaci aacm aaco aacr aaea aaec aaem aaib aaic aaii aama aamb aamc aame aami aamo aamr aaoe aaoo aara aarc aare aari aarm aaro abaa abab abac abae abai 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 aboo abor abra abrc abri abro acaa acab acac acae acai acar acba acca accc acce acci accm acco ace- acea acec acem acer aci- acia acic acie acim acir acma acmc acme acmi acoa acoe acom acor acr- acra acrc acre acri acrm acro acrr aeac aebi aecb aeci aeer aeio aeom aer- aera aerc aeri aero aiai aiba aibo aica aicc aice aicr aiea aiee aiia aiib aiic aiir aimc aime aimi aimm aimo aioc aioi aira aire airi airo amaa amac amae amai amam amar amb- amba ambe ambi ambo ambr amca amcc amco amec amee amei amer amia amib amic amie amii amir amm- amma amme ammi ammo amob amoc amoi amoo amor amra amrc amri amro aoba aoca aoce aoma aora aorb arab arac arae arai aram arar arba arbe arbi arc- arca arce arci arcm arco area arec aree arei arem areo aria arib arie arii arim ario arma armc arme armi armm armo aroa arob aroe aroi arom aroo aror arr- arra arrc arre arri arro arrr ba-i baaa baam baar baba babb babe babi babm babo babr bac- baca bacc bace baci baco baer baia baib baic baie baio bair bama bamb bamc bame bami bamm bar- bara barb barc bare bari barm baro barr bbbb bbci bbcm bbeb bbrc bcaa bcam bcar bcbc bcca bccc bcci bccm bcec bcer bcia bcie bcma bcor bcra beam bear beba bebb bebe bebi bebo beca beci beeb beem beer beia beic beim beir bema beme beo- beor bera berc bere beri berm bero berr biao biar biba bibb bibe bibi bibo bica bicc bice bici bico bieb bier bima bimo bio- bioc bioi bira birb bire biri biro birr bmaa bmce bmci bmic bmir bmmi bmoc boab boac boai boar boba bobb bobe bobi bobo boca boce bocm boco boea boec boee boeo boer boi- boie boii boim boma bomb bome bomi boob booc booe boom boor bor- bora bore bori borm boro borr brab brac brae brai bram brao brca brcb brce brea breb brec bree brei brem breo brer bria bric brie brim brio brmc broa brob broc broe brom broo bror brrm brrr c-bo caaa caab caac caam caba cabe cabi cabo cac- caca cacc cace caci cacm caco cacr caec caei caem caer caia caib