-al -er a-a a-b a-c aaa aab aac aae aag aal aar aau ab- aba abb abc abe abg abl abr abu ac- aca acb acc ace acg acl acr acu aea aeb aec aee aeg ael aer aeu ag- aga agb agc age agg agl agr agu al- ala alb alc ale alg all alr alu ar- ara arb arc are arg arl arr aru au- aua aub auc aue aug aul aur b-u baa bab bac bae bag bal bar bau bba bbb bbc bbe bbg bbl bbr bbu bca bcb bcc bce bcg bcl bcr bcu be- bea beb bec bee beg bel ber beu bga bgb bgc bge bgg bgl bgr bgu bla blb blc ble blg bll blr blu bra brb bre brg brl brr bru bua bub buc bue bug bul bur buu c-- caa cab cac cae cag cal car cau cba cbb cbc cbe cbg cbl cbr cbu cca ccb ccc cce ccg ccl ccr ccu ce- cea ceb cec cee ceg cel cer ceu cga cgb cgc cge cgg cgl cgr cgu cl- cla clb clc cle clg cll clr clu cra crb crc cre crg crl crr cru cua cub cuc cue cug cul cur cuu eaa eab eac eae eag eal ear eau eba ebb ebc ebe ebg ebl ebr ebu ec- eca ecb ecc ece ecg ecl ecr ecu eea eeb eec eee eeg eel eer ega egb egc ege egg egl egr egu ela elb elc ele elg ell elr elu era erb erc ere erg erl err eru eu- eua eub euc eue eug eul eur gaa gab gac gae gag gal gar gau gba gbc gbe gbg gbl gbr gbu gca gcb gcc gce gcg gcl gcr gcu ge- gea geb gec gee geg gel ger geu gga ggb ggc ggg ggr ggu gla glb glc gle glg gll glr glu gra grb grc gre grg grl grr gru gu- gua gub guc gue gug gul gur guu la- laa lab lac lae lag lal lar lau lba lbb lbc lbe lbg lbl lbr lbu lca lcb lcc lce lcg lcl lcr lcu lea leb lec lee leg lel ler leu lga lgb lgc lge lgg lgl lgr lgu lla llb llc lle llg lll llr llu lra lrb lrc lrg lrr lru lua lub luc lue lug lul lur luu ra- raa rab rac rae rag ral rar rau rba rbb rbc rbe rbg rbl rbr rbu rca rcb rcc rce rcg rcl rcr rcu re- rea reb rec ree reg rel rer reu rga rgb rgc rge rgg rgr rla rlc rle rlg rll rlr rlu rra rrb rrc rrg rrl rrr rru rua rub ruc rue rug rur ruu ua- uaa uab uac uae uag ual uar uau uba ubb ubc ube ubg ubl ubr ubu uca ucb ucc uce ucg ucl ucr ucu uea ueb uec uee ueg uel uer uga ugb ugc uge ugg ugl ugr ugu ula ulb ulc ule ulg ull ulr ulu ur- ura urb urc ure urg url urr uru uua uuc uue uug uur uuu

a-be aaaa aaab aaac aaae aaal aaar aaba aabb aabc aabl aaca aacb aacc aace aacl aacr aacu aaea aaec aage aala aalc aale aall aalu aara aarc aare aaru abaa abab abac abae abag abal abar abau abb- abba abbb abbe abbr abca abcb abcc abcl abcr abec abee abel aber abgl abla able abra abrc abua abue abug abul acaa acab acac acae acag acar acba acbl acca accc acce accu ace- acea acec acel acer acga acgr acla aclc acle aclr aclu acr- acra acrc acre acrr acu- acue acul acur aeac aecb aecl aeer aega aela aelc aer- aera aerc agac agag agal agar agau agba agca agcc agce agea agee agel ager agga agge aggu agla aglc agle aglu agra agre agrl agua ague agul agur alaa alac alae alag alal alar alau alb- alba albc albe albu alca alcc alce alea alec alee aleg aler aleu alg- alga alge all- alla alle alll allr allu alua alug alur arab arac arae arag aral arar arau arba arbe arc- arca arce area arec aree areg arel areu arga argb arge arla arle arr- arra arrc arre arrg arrr arru arua arub arue arug arul auaa aube auca auce auel auer auga auge aul- aula aule aull aulu aur- aura aure auug baaa baal baar baba babb babe babr babu bac- baca bacc bace bael baer baga bage bagg bala balc bale ball balu bar- bara barb barc bare barg barr baru bau- baug baul baur bbau bbbb bbeb bbga bblb bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bccl bcec bcer bcra bcru bcuc beag beal bear beau beba bebb bebe beca becu beeb beeg beel beer bega begg begu bela bele belg bell belu bera berc bere berg berr beru beur bgca blaa blab blac blae blag blau blcu blea bleb blee bleg bleu blrc blrg blub blue blur brab brac brae brag brau brca brcb brce brea breb brec bree breg brel brer brrr bruc brue brug bual buar buba bubb bube bubu buca bucc buce bucu buea buel buer bueu buga buge bugg bula bulb bule bulg bull bulu bur- bura burb bure burg burl burr buru caaa caab caac caal caba cabe cabg cabu cac- caca cacc cace cacr caec caer caeu caga cage cagg cagr cala calc cale call calu cara carb carc care carl carr cauc caul cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbcu cbea cbec cbee cber cbga cbgb cblb cblc cbre cbrl ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc cccl cccu ccee ccel ccga ccgc ccla cclc cclg ccra ccrc ccre ccrg ccrl ccuc ceac ceal cear ceba cebu 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 clau clea clec clee cleg cler