-al -er a-a a-b a-c aaa aab aac aae aag aal aar ab- aba abb abc abe abg abl abr ac- aca acb acc ace acg acl acr aea aeb aec aee aeg ael aer ag- aga agb agc age agg agl agr al- ala alb alc ale alg all alr ar- ara arb arc are arg arl arr baa bab bac bae bag bal bar bba bbb bbc bbe bbg bbl bbr bca bcb bcc bce bcg bcl bcr be- bea beb bec bee beg bel ber bga bgb bgc bge bgg bgl bgr bla blb blc ble blg bll blr bra brb bre brg brl brr c-- caa cab cac cae cag cal car cba cbb cbc cbe cbg cbl cbr cca ccb ccc cce ccg ccl ccr ce- cea ceb cec cee ceg cel cer cga cgb cgc cge cgg cgl cgr cl- cla clb clc cle clg cll clr cra crb crc cre crg crl crr eaa eab eac eae eag eal ear eba ebb ebc ebe ebg ebl ebr ec- eca ecb ecc ece ecg ecl ecr eea eeb eec eee eeg eel eer ega egb egc ege egg egl egr ela elb elc ele elg ell elr era erb erc ere erg erl err gaa gab gac gae gag gal gar gba gbc gbe gbg gbl gbr gca gcb gcc gce gcg gcl gcr ge- gea geb gec gee geg gel ger gga ggb ggc ggg ggr gla glb glc gle glg gll glr gra grb grc gre grg grl grr la- laa lab lac lae lag lal lar lba lbb lbc lbe lbg lbl lbr lca lcb lcc lce lcg lcl lcr lea leb lec lee leg lel ler lga lgb lgc lge lgg lgl lgr lla llb llc lle llg lll llr lra lrb lrc lrg lrr ra- raa rab rac rae rag ral rar rba rbb rbc rbe rbg rbl rbr rca rcb rcc rce rcg rcl rcr re- rea reb rec ree reg rel rer rga rgb rgc rge rgg rgr rla rlc rle rlg rll rlr rra rrb rrc rrg rrl rrr

a-be aaaa aaab aaac aaae aaal aaar aaba aabb aabc aabl aaca aacb aacc aace aacl aacr aaea aaec aage aala aalc aale aall aara aarc aare abaa abab abac abae abag abal abar abb- abba abbb abbe abbr abca abcb abcc abcl abcr abec abee abel aber abgl abla able abra abrc acaa acab acac acae acag acar acba acbl acca accc acce ace- acea acec acel acer acga acgr acla aclc acle aclr acr- acra acrc acre acrr aeac aecb aecl aeer aega aela aelc aer- aera aerc agac agag agal agar agba agca agcc agce agea agee agel ager agga agge agla aglc agle agra agre agrl alaa alac alae alag alal alar alb- alba albc albe alca alcc alce alea alec alee aleg aler alg- alga alge all- alla alle alll allr arab arac arae arag aral arar arba arbe arc- arca arce area arec aree areg arel arga argb arge arla arle arr- arra arrc arre arrg arrr baaa baal baar baba babb babe babr bac- baca bacc bace bael baer baga bage bagg bala balc bale ball bar- bara barb barc bare barg barr bbbb bbeb bbga bblb bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bccl bcec bcer bcra beag beal bear beba bebb bebe beca beeb beeg beel beer bega begg bela bele belg bell bera berc bere berg berr bgca blaa blab blac blae blag blea bleb blee bleg blrc blrg brab brac brae brag brca brcb brce brea breb brec bree breg brel brer brrr caaa caab caac caal caba cabe cabg cac- caca cacc cace cacr caec caer caga cage cagg cagr cala calc cale call cara carb carc care carl carr cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbea cbec cbee cber cbga cbgb cblb cblc cbre cbrl ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc cccl ccee ccel ccga ccgc ccla cclc cclg ccra ccrc ccre ccrg ccrl ceac ceal cear ceba cec- ceca cece ceeb ceec ceel cege cel- cela celc cele cell cer- cera cerc cere cerl cgac cgal cgcc cgcg cgel cger clab clag clar clea clec clee cleg cler clra crab crac crag crar crbc crca crcc crce crcr cre- crea creb crec cree creg e-cl e-la eaba eaca eacc eaec eaga eage eagl eala ealc eale eara earb eare earl ebac ebal ebba ebbc ebbr ebcc ebel eber ebla ecaa ecac ecal ecar ecbc ecbe ecca eccb eccc ecce eccl ecla ecra ecrc ecrl ecrr eeca eeea eeee eega eele eera eerc eerg egaa egae egal egar egba egbe egcc egcg egcr egea egec egee egel eger eggb egge eglc egle egra egre el-b elab elac elal elar elba elbe elca elcb elce elea elec elee eler elgg ella elle elra eral erba erbb erbe erca ercc erce ereb erec erel erer erg- erga ergg erla erle erll erra errc erre gaal gaar gaba gabb gabe gabl gabr gace gaea gaec gael gaer gaga gage gagg gala gale gall gara garb gare garg garr gbag gc-c gcaa gcal gcbc gccc gclc gcrg geab geal gear geba gebe geca gece geel geer gege gegg gegl gela gelb gele gelg gell gera gerb gere gerl ggcl gggg glaa glab glar glbc glcc glce gleb glee gleg glge glrb grab grac grae grbr grcc grce grea greb grec gree greg grrl grrr laaa laac laag laal laar laba labe labr laca lacc lace lacl lael laer lag- laga lage lagg lala lale lall lara larb larc lare larg larr lbar lbcc lblr lcac lcbc lcca lccc lcce lcer lcra lcrg lcrl leaa leag leal lear leba leca lece leea leel leer lega lege legg lela lele lell lera lerc lere lgca lger llcc llgc lllc llll lrac lral lrba lrgb lrrc lrrr raab raag raba rabb rabe rabl rac- raca racc race raec raeg rael raer raga rage