-er a-a a-b a-c aaa aab aac aae aag aam aao aar aav ab- aba abb abc abe abg abm abo abr abv ac- aca acb acc ace acg acm aco acr acv aea aeb aec aee aeg aem aeo aer aev ag- aga agb agc age agg agm ago agr agv ama amb amc ame amg amm amo amr amv aoa aob aoc aoe aog aom aoo aor aov ar- ara arb arc are arg arm aro arr arv av- ava avb avc ave avg avm avo avr baa bab bac bae bag bam bao bar bav bba bbb bbc bbe bbg bbm bbo bbr bca bcb bcc bce bcg bcm bco bcr bcv be- bea beb bec bee beg bem beo ber bev bga bgb bgc bge bgg bgm bgo bgr bgv bma bmb bmc bme bmg bmm bmo bmr bmv boa bob boc boe bog bom boo bor bov bra brb bre brg brm bro brr brv bva bvb bvc bve bvg bvm bvo bvr bvv c-- caa cab cac cae cag cam cao car cav cba cbb cbc cbe cbg cbm cbo cbr cbv cca ccb ccc cce ccg ccm cco ccr ccv ce- cea ceb cec cee ceg cem ceo cer cev cga cgb cgc cge cgg cgm cgo cgr cgv cma cmb cmc cme cmg cmm cmo cmr cmv co- coa cob coc coe cog com coo cor cov cra crb crc cre crg crm cro crr crv cva cvb cvc cve cvg cvm cvo cvr cvv eaa eab eac eae eag eam eao ear eav eba ebb ebc ebe ebg ebm ebo ebr ebv ec- eca ecb ecc ece ecg ecm eco ecr ecv eea eeb eec eee eeg eem eeo eer eev ega egb egc ege egg egm ego egr em- ema emb emc eme emg emm emo emr emv eo- eoa eob eoc eoe eog eom eoo eor era erb erc ere erg erm ero err erv eva evb evc eve evg evm evo evr evv gaa gab gac gae gag gam gao gar gav gba gbc gbe gbg gbm gbo gbr gbv gca gcb gcc gce gcg gcm gco gcr ge- gea geb gec gee geg gem geo ger gev gga ggb ggc ggg ggm ggo ggr ggv gma gmb gmc gme gmg gmm gmo gmr gmv goa gob goc goe gog gom goo gor gov gra grb grc gre grg grm gro grr grv gva gvb gvc gve gvg gvm gvo gvr m-o m-r m-v maa mab mac mae mag mam mao mar mav mba mbb mbc mbe mbg mbm mbo mbr mbv mc- mca mcb mcc mce mcg mcm mco mcr mcv mea meb mec mee meg mem meo mer mev mga mgb mgc mge mgm mgo mgr mgv mma mmb mmc mme mmg mmm mmo mmr mmv moa mob moc moe mog mom moo mor mov mra mrb mrc mre mrg mrm mro mrr mrv mva mvb mvc mve mvg mvm mvo mvr mvv oaa oab oac oae oag oam oao oar oav ob- oba obb obc obe obg obm obo obr obv oc- oca ocb occ ocg ocm oco ocr ocv oea oeb oec oee oeg oem oeo oer oga ogc oge ogg ogo om- oma omb omc ome omg omm omo omr omv oo- ooa oob ooc oog oom ooo oor oov or- ora orb orc ore org orm oro orr orv ov- ova ovb ovc ove ovo ovv ra- raa rab rac rae rag ram rao rar rav rba rbb rbc rbe rbg rbm rbo rbr rca rcb rcc rce rcg rcm rco rcr rcv re- rea reb rec ree reg rem reo rer rev rga rgb rgc rge rgg rgo rgr rgv rma rmb rmc rme rmg rmm rmo rmr rmv roa rob roc roe rog rom roo ror rov rra rrb rrc rrg rrm rrr rva rvb rvc rve rvg rvm rvo rvr rvv v-a v-e vaa vab vac vae vag vam vao var vav vba vbc vbg vbm vbo vbr vbv vca vcc vce vcm vco vcr vea veb vec vee veg vem veo ver vga vgc vgg vgm vgo vgr vm- vma vmc vmm vmo vmr voa vob voc voe vog vom voo vor vov vra vrb vrc vre vrg vrm vrr vva vvb vvc vvg vvm vvo vvr vvv

-vac a-be aaaa aaab aaac aaae aaam aaar aaav aaba aabb aabc aabm aaca aacb aacc aace aacm aaco aacr aacv aaea aaec aaem aaev aage aama aamb aamc aame aamo aamr aaoe aaoo aara aarc aare aarm aaro aava abaa abab abac abae abag abam abar abb- abba abbb abbe abbo abbr abca abcb abcc abcr abec abee aber abma abmb abmc aboa abob aboo abor abov abra abrc abro abva acaa acab acac acae acag acar acba acca accc acce accm acco ace- acea acec acem acer acev acga acgr acma acmc acme acmg acmv acoa acoe acog acom acor acr- acra acrc acre acrm acro acrr acrv acvv aeac aecb aeer aega aeom aer- aera aerc aero aeva ag-o agac agag agam agao agar agav agba agbo agca agcc agce agco agea agee agem ager agga agge agma agmc agme agob agog agoo agra agre agro agva amaa amac amae amag amam amar amb- amba ambe ambo ambr amca amcc amco amec amee amer amga amm- amma amme ammo amob amoc amog amoo amor amra amrc amro aoba aoca aoce aogm aoma aomg aora aorb arab arac arae arag aram arar arba arbe arc- arca arce arcm arco area arec aree areg arem areo arev arga argb arge argo arma armc arme armm armo aroa arob aroe arom aroo aror arr- arra arrc arre arrg arro arrr arva arve arvo avab avao avar avcc avce avco avea avec aveo aver avgo avma avor avra avre avro avva avvo baaa baam baar baba babb babe babm babo babr bac- baca bacc bace baco baer baga bage bagg bago bama bamb bamc bame bamm bar- bara barb barc bare