-er a-a a-b a-i a-t aaa aab aae aag aai aam aao aar aat ab- aba abb abe abg abi abm abo abr abt aea aeb aee aeg aei aem aeo aer aet ag- aga agb age agg agi agm ago agr agt ai- aia aib aie aig aii aim aio air ait ama amb ame amg ami amm amo amr amt aoa aob aoe aog aoi aom aoo aor aot ar- ara arb are arg ari arm aro arr art at- ata atb ate atg ati atm ato atr att baa bab bae bag bai bam bao bar bat bba bbb bbe bbg bbi bbm bbo bbr bbt be- bea beb bee beg bei bem beo ber bet bga bgb bge bgg bgi bgm bgo bgr bgt bi- bia bib bie big bii bim bio bir bit bma bmb bme bmg bmi bmm bmo bmr bmt boa bob boe bog boi bom boo bor bot bra brb bre brg bri brm bro brr brt bta btb bte btg bti btm bto btr btt eaa eab eae eag eai eam eao ear eat eba ebb ebe ebg ebi ebm ebo ebr ebt eea eeb eee eeg eem eeo eer eet ega egb ege egg egi egm ego egr egt eia eib eie eig eii eim eio eir eit em- ema emb eme emg emi emm emo emr emt eo- eoa eob eoe eog eoi eom eoo eor eot era erb ere erg eri erm ero err ert eta etb ete etg eti etm eto etr ett gaa gab gae gag gai gam gao gar gat gba gbe gbg gbi gbm gbo gbr gbt ge- gea geb gee geg gei gem geo ger get gga ggb ggg ggi ggm ggo ggr ggt gia gib gie gig gii gim gio gir git gma gmb gme gmg gmi gmm gmo gmr gmt goa gob goe gog goi gom goo gor got gra grb gre grg gri grm gro grr grt gta gtb gte gtg gti gtm gto gtr gtt ia- iaa iab iae iag iai iam iao iar iat iba ibb ibe ibg ibi ibm ibo ibr ibt ie- iea iee ieg iei iem ier iet iga igb ige igg igi igm igo igr igt iia iib iie iii iim iio iir iit im- ima imb ime img imi imm imo imt io- ioa iob ioe iog ioi iom ioo ior iot ir- ira irb ire irg iri irm iro irr irt ita itb ite itg iti itm ito itt m-o m-r maa mab mae mag mai mam mao mar mat mba mbb mbe mbg mbi mbm mbo mbr mbt mea meb mee meg mei mem meo mer met mga mgb mge mgi mgm mgo mgr mgt mi- mia mib mie mig mii mim mio mir mit mma mmb mme mmg mmi mmm mmo mmr mmt moa mob moe mog moi mom moo mor mot mra mrb mre mrg mri mrm mro mrr mrt mta mtb mte mtg mti mtm mto mtr mtt o-i oaa oab oae oag oai oam oao oar oat ob- oba obb obe obg obi obm obo obr obt oea oeb oee oeg oei oem oeo oer oet oga oge ogg ogi ogo ogt oia oib oie oii oim oio oir oit om- oma omb ome omg omi omm omo omr omt oo- ooa oob oog ooi oom ooo oor oot or- ora orb ore org ori orm oro orr ort ot- ota otb ote otg oti otm oto otr ott ra- raa rab rae rag rai ram rao rar rat rba rbb rbe rbg rbi rbm rbo rbr rbt re- rea reb ree reg rei rem reo rer ret rga rgb rge rgg rgi rgo rgr rgt ria rib rie rig rii rim rio rir rit rma rmb rme rmg rmi rmm rmo rmr rmt roa rob roe rog roi rom roo ror rot rra rrb rrg rri rrm rrr rrt rta rtb rte rtg rti rtm rto rtr rtt taa tab tae tag tai tam tao tar tat tba tbb tbe tbg tbi tbm tbo tbr tbt te- tea teb tee teg tei tem teo ter tet tga tgb tge tgg tgi tgm tgo tgr tgt tia tib tie tig tii tim tio tir tit tma tmb tme tmg tmi tmm tmo tmr tmt to- toa tob toe tog toi tom too tor tot tra trb tre trg tri trm tro trr trt tta ttb tte ttg tti ttm tto ttr ttt

a-be a-ii aaaa aaab aaae aaai aaam aaar aaba aabb aabi aabm aabt aaea aaem aage aaib aaii aama aamb aame aami aamo aamr aaoe aaoo aara aare aari aarm aaro aart aata aatt abaa abab abae abag abai abam abar abat abb- abba abbb abbe abbi abbo abbr abbt abee aber abet abia abib abie abig abim abir abit abma abmb abmt aboa abob aboo abor abot abra abri abro abta aebi aeer aega aeio aeit aemt aeom aer- aera aeri aero aeta aeto aetr aett ag-o agag agai agam agao agar agat agba agbo agea agee agei agem ager aget agga agge aggi agia agib agie agig agii agim agio agir agit agma agme agob agog agoo agot agra agre agri agro agta agte agtr aiai aiba aibo aiea aiee aiet aiga aigo aiia aiib aiir aime aimi aimm aimo aioi aira aire airi airo airt aita aite aiti aitr aitt amaa amae amag amai amam amar amat amb- amba ambe ambi ambo ambr amee amei amer amet amga amia amib amie amii amir amit amm- amma amme ammi ammo amob amog amoi amoo amor amot amra amri amro amta amte amti amto aoba aogm aoma aomg aora aorb aort arab arae arag arai aram arar arat arba arbe arbi area aree areg arei arem areo aret arga argb arge argi argo aria arib arie arig arii arim ario arit arma arme armi armm armo armt aroa arob aroe aroi arom aroo aror arr- arra arre arrg arri arro arrr arrt arta arte