-al -er a-a a-b a-c aaa aab aac aad aae aal aar aau ab- aba abb abc abd abe abl abr abu ac- aca acb acc acd ace acl acr acu ad- ada adb adc add ade adl adr adu aea aeb aec aed aee ael aer aeu al- ala alb alc ald ale all alr alu ar- ara arb arc ard are arl arr aru au- aua aub auc aud aue aul aur b-u baa bab bac bad bae bal bar bau bba bbb bbc bbd bbe bbl bbr bbu bca bcb bcc bcd bce bcl bcr bcu bda bdb bdc bdd bde bdl bdr bdu be- bea beb bec bed bee bel ber beu bla blb blc bld ble bll blr blu bra brb brd bre brl brr bru bua bub buc bud bue bul bur buu c-- caa cab cac cad cae cal car cau cba cbb cbc cbd cbe cbl cbr cbu cca ccb ccc ccd cce ccl ccr ccu cda cdb cdc cdd cde cdl cdr cdu ce- cea ceb cec ced cee cel cer ceu cl- cla clb clc cld cle cll clr clu cra crb crc crd cre crl crr cru cua cub cuc cud cue cul cur cuu daa dab dac dad dae dal dar dau dba dbb dbc dbd dbe dbl dbr dbu dca dcb dcc dcd dce dcl dcr dcu dda ddb ddc ddd dde ddl ddr ddu de- dea deb dec ded dee del der deu dl- dla dlb dlc dld dle dll dlr dlu dra drb drc drd dre drl drr dru dua dub duc dud due dul dur eaa eab eac ead eae eal ear eau eba ebb ebc ebd ebe ebl ebr ebu ec- eca ecb ecc ecd ece ecl ecr ecu ed- eda edb edc edd ede edl edr edu eea eeb eec eed eee eel eer ela elb elc eld ele ell elr elu era erb erc erd ere erl err eru eu- eua eub euc eud eue eul eur la- laa lab lac lad lae lal lar lau lba lbb lbc lbd lbe lbl lbr lbu lca lcb lcc lcd lce lcl lcr lcu lda ldb ldc ldd lde ldl ldr ldu lea leb lec led lee lel ler leu lla llb llc lld lle lll llr llu lra lrb lrc lrd lrr lru lua lub luc lud lue lul lur luu ra- raa rab rac rad rae ral rar rau rba rbb rbc rbd rbe rbl rbr rbu rca rcb rcc rcd rce rcl rcr rcu rda rdb rdc rdd rde rdl rdr rdu re- rea reb rec red ree rel rer reu rla rlc rld rle rll rlr rlu rra rrb rrc rrd rrl rrr rru rua rub ruc rud rue rur ruu ua- uaa uab uac uad uae ual uar uau uba ubb ubc ube ubl ubr ubu uca ucb ucc ucd uce ucl ucr ucu uda udb udc udd ude udl udr udu uea ueb uec ued uee uel uer ula ulb ulc uld ule ull ulr ulu ur- ura urb urc urd ure url urr uru uua uuc uue uur uuu

a-be aaaa aaab aaac aaad aaae aaal aaar aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aacl aacr aacu aada aadc aade aadu aaea aaec aala aalc aald aale aall aalu aara aarc aard aare aaru abaa abab abac abad abae abal abar abau abb- abba abbb abbe abbr abca abcb abcc abcd abcl abcr abda abdu abec abed abee abel aber abla able abra abrc abua abud abue abul acaa acab acac acad acae acar acba acbl acca accc accd acce accu acda acdb acdc acde ace- acea acec aced acel acer acla aclc acle aclr aclu acr- acra acrc acre acrr acu- acue acul acur adaa adab adac adad adae adal adar adba adbc adcc adda addc addd adde addl addr addu adea adeb adee adel ader adle adra adre adua adub adue adur aeac aecb aecl aede aeer aela aelc aer- aera aerc aerd alaa alac alad alae alal alar alau alb- alba albc albe albu alca alcc alce ald- alda alde aldl alea alec aled alee aler aleu all- alla alle alll allr allu alua alur arab arac arad arae aral arar arau arba arbe arc- arca arce arda ardc arde ardl ardu area arec ared aree arel areu arla arle arr- arra arrc arre arrr arru arua arub arud arue arul auaa aube auca auce audc aude auel auer aul- aula auld aule aull aulu aur- aura aurd aure baaa baad baal baar baba babb babe babr babu bac- baca bacc bace bada badb badd bade badr badu baed bael baer bala balc bald bale ball balu bar- bara barb barc bard bare barr baru bau- baud baul baur bbad bbau bbbb bbdd bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bcde bcec bcer bcra bcru bcuc bd-r bdbc bddc bdle bead beal bear beau beba bebb bebe beca becu beda bede bedl bedu beeb beed beel beer bela beld bele bell belu bera berc berd bere berr beru beur blaa blab blac blad blae blau blcu bldc bldr blea bleb bled blee bleu blrc blub blud blue blur brab brac brad brae brau brca brcb brce brda brea breb brec bred bree brel brer brrr bruc brud brue buad bual buar buba bubb bube bubu buca bucc buce bucu buda budb budd bude budl budu buea buel buer bueu bula bulb buld bule bull bulu bur- bura burb burd bure burl burr buru c-cd caaa caab caac caal caba cabe cabu cac- caca cacc cace cacr cada cadc cadd cade cadr cadu caec caer caeu cala calc cald cale call calu cara carb carc card care carl carr cauc caul cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbcu cbdb cbdc cbea cbec cbee cber cblb cblc cbrd cbre cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl cccu ccdc ccdr cced ccee