-al -er a-a a-b a-c aaa aab aac aae aak aal aar aau ab- aba abb abc abe abk abl abr abu ac- aca acb acc ace ack acl acr acu aea aeb aec aee aek ael aer aeu aka akb akc ake akk akl akr aku al- ala alb alc ale alk all alr alu ar- ara arb arc are ark arl arr aru au- aua aub auc aue auk aul aur b-u baa bab bac bae bak bal bar bau bba bbb bbc bbe bbk bbl bbr bbu bca bcb bcc bce bck bcl bcr bcu be- bea beb bec bee bek bel ber beu bka bkb bkc bke bkk bkl bkr bla blb blc ble blk bll blr blu bra brb bre brk brl brr bru bua bub buc bue buk bul bur buu c-- caa cab cac cae cak cal car cau cba cbb cbc cbe cbk cbl cbr cbu cca ccb ccc cce cck ccl ccr ccu ce- cea ceb cec cee cek cel cer ceu cka ckb ckc cl- cla clb clc cle clk cll clr clu cra crb crc cre crk crl crr cru cua cub cuc cue cuk cul cur cuu eaa eab eac eae eak eal ear eau eba ebb ebc ebe ebk ebl ebr ebu ec- eca ecb ecc ece eck ecl ecr ecu eea eeb eec eee eek eel eer eka ekb ekc eke ekl ekr eku ela elb elc ele elk ell elr elu era erb erc ere erk erl err eru eu- eua eub euc eue eul eur ka- kaa kab kac kae kak kal kar kau kba kbb kbc kbe kbk kbl kbr kbu kca kcb kcc kce kck kcl kcr kcu ke- kea keb kec kee kek kel ker kkb kkc kke kkk kkl kkr kku kl- kla klb klc klr klu kra krc krk krl krr kru kub kuc kue kuk kul kur kuu la- laa lab lac lae lak lal lar lau lba lbb lbc lbe lbk lbl lbr lbu lca lcb lcc lce lck lcl lcr lcu lea leb lec lee lek lel ler leu lka lkb lkl lkr lla llb llc lle llk lll llr llu lra lrb lrc lrk lrr lru lua lub luc lue luk lul lur luu ra- raa rab rac rae rak ral rar rau rba rbb rbc rbe rbk rbl rbr rbu rca rcb rcc rce rcl rcr rcu re- rea reb rec ree rek rel rer reu rkb rkc rke rkk rku rla rlc rle rll rlr rlu rra rrb rrc rrk rrl rrr rru rua rub ruc rue ruk rur ruu ua- uaa uab uac uae uak ual uar uau uba ubb ubc ube ubk ubl ubr ubu uca ucb ucc uce uck ucl ucr ucu uea ueb uec uee uel uer uka ukb ukc uke ukk ukl ukr uku ula ulb ulc ule ulk ull ulr ulu ur- ura urb urc ure urk url urr uru uua uuc uue uur uuu

a-ak a-be aaaa aaab aaac aaae aaal aaar aaba aabb aabc aabl aaca aacb aacc aace aack aacl aacr aacu aaea aaec aaka aake aaku aala aalc aale aall aalu aara aarc aare aaru abaa abab abac abae abak abal abar abau abb- abba abbb abbe abbr abca abcb abcc abcl abcr abec abee abel aber abla able abra abrc abua abue abuk abul acaa acab acac acae acar acba acbl acca accc acce accu ace- acea acec acek acel acer acke acla aclc acle aclr aclu acr- acra acrc acre acrr acu- acue acul acur aeac aecb aecl aeer aeka aela aelc aer- aera aerc akaa akae akal akar akca akee akel aker akeu akka akku akle akr- akra akre akua alaa alac alae alak alal alar alau alb- alba albc albe albu alca alcc alce alea alec alee alek aler aleu alk- alka alkb alke alku all- alla alle alll allr allu alua aluk alur arab arac arae arak aral arar arau arba arbe arc- arca arce area arec aree arek arel areu arka arke arla arle arr- arra arrc arre arrk arrr arru arua arub arue arul auaa aube auca auce auel auer auke aul- aula aule aull aulu aur- aura aure baaa baak baal baar baba babb babe babr babu bac- baca bacc bace back baek bael baer bak- baka bake bakl bakr baku bala balc bale balk ball balu bar- bara barb barc bare bark barr baru bau- bauk baul baur bbau bbbb bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcec bcer bcra bcru bcuc beak beal bear beau beba bebb bebe beca beck becu beeb beek beel beer beka beke bela bele belk bell belu bera berc bere berk berr beru beuk beur blaa blab blac blae blak blau blcu blea bleb blee blek bleu blkb blrc blub blue blur brab brac brae brak brau brca brcb brce brea breb brec bree brek brel brer brka brkb brrr bruc brue bual buar buba bubb bube bubu buca bucc buce buck bucu buea buel buer bueu buka buke bukk buku bula bulb bule bulk bull bulu bur- bura burb bure burk burl burr buru caaa caab caac caal caba cabe cabu cac- caca cacc cace cack cacr caec caer caeu caka cake cala calc cale calk call calu cara carb carc care cark carl carr cauc cauk caul cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbcu cbea cbec cbee cber cbka cbkl cbkr cblb cblc cbre cbrl ccaa ccab ccac ccar ccba ccbc ccca cccb cccc cccl cccu ccee ccel ccla cclc ccra ccrc ccre ccrl ccuc ceac ceal cear ceba cebu cec- ceca cece ceeb ceec ceel ceke cel- cela celc cele cell cer- cera cerc cere cerl ckac ckbc ckbe ckck ckcl cker ckrc clab clar clau clea clec clee clek cler cleu clra club clue crab crac crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree creu crkc crkl crub crue cruk cuau cub- cuba cubb