-al a-a a-b a-c aaa aab aac aad aah aal aar aau ab- aba abb abc abd abh abl abr abu ac- aca acb acc acd ach acl acr acu ad- ada adb adc add adh adl adr adu aha ahb ahc ahd ahh ahl ahr ahu al- ala alb alc ald alh all alr alu ar- ara arb arc ard arh arl arr aru au- aua aub auc aud auh aul aur b-u baa bab bac bad bah bal bar bau bba bbb bbc bbd bbh bbl bbr bbu bca bcb bcc bcd bch bcl bcr bcu bda bdb bdc bdd bdh bdl bdr bdu bha bhb bhc bhd bhh bhl bhr bhu bla blb blc bld blh bll blr blu bra brb brd brh brl brr bru bua bub buc bud buh bul bur buu c-- caa cab cac cad cah cal car cau cba cbb cbc cbd cbh cbl cbr cbu cca ccb ccc ccd cch ccl ccr ccu cda cdb cdc cdd cdh cdl cdr cdu ch- cha chb chc chd chh chl chr chu cl- cla clb clc cld clh cll clr clu cra crb crc crd crh crl crr cru cua cub cuc cud cuh cul cur cuu daa dab dac dad dah dal dar dau dba dbb dbc dbd dbh dbl dbr dbu dca dcb dcc dcd dcl dcr dcu dda ddb ddc ddd ddh ddl ddr ddu dh- dha dhb dhc dhd dhh dhl dhr dhu dl- dla dlb dlc dld dlh dll dlr dlu dra drb drc drd drl drr dru dua dub duc dud duh dul dur haa hab hac had hah hal har hau hba hbb hbc hbd hbh hbl hbr hbu hca hcb hcc hcd hch hcl hcr hda hdb hdc hdd hdh hdl hdr hdu hha hhb hhc hhd hhh hhl hhr hhu hla hlb hlc hld hlh hll hlr hlu hr- hra hrb hrc hrd hrh hrl hrr hru hua hub huc hud huh hul hur huu la- laa lab lac lad lah lal lar lau lba lbb lbc lbd lbh lbl lbr lbu lca lcb lcc lcd lch lcl lcr lcu lda ldb ldc ldd ldh ldl ldr ldu lha lhb lhc lhd lhh lhr lhu lla llb llc lld lll llr llu lra lrb lrc lrd lrh lrr lru lua lub luc lud luh lul lur luu ra- raa rab rac rad rah ral rar rau rba rbb rbc rbd rbh rbl rbr rbu rca rcb rcc rcd rch rcl rcr rcu rda rdb rdc rdd rdh rdl rdr rdu rh- rha rhb rhc rhd rhh rhl rhr rhu rla rlc rld rlh rll rlr rlu rra rrb rrc rrd rrh rrl rrr rru rua rub ruc rud ruh rur ruu ua- uaa uab uac uad uah ual uar uau uba ubb ubc ubh ubl ubr ubu uca ucb ucc ucd uch ucl ucr ucu uda udb udc udd udl udr udu uha uhb uhc uhd uhh uhl uhr uhu ula ulb ulc uld ull ulr ulu ur- ura urb urc urd url urr uru uua uuc uur uuu

a-ha aaaa aaab aaac aaad aaah aaal aaar aaba aabb aabc aabd aabh aabl aaca aacb aacc aacd aach aacl aacr aacu aada aadc aadu aaha aahl aala aalc aald aall aalu aara aarc aard aaru abaa abab abac abad abal abar abau abb- abba abbb abbr abca abcb abcc abcd abch abcl abcr abda abdu abha abhr abla abra abrc abua abud abul acaa acab acac acad acar acba acbl acca accc accd acch accu acda acdb acdc acha achh achl achr achu acla aclc aclr aclu acr- acra acrc acrr acu- acul acur adaa adab adac adad adah adal adar adba adbc adcc adda addc addd addl addr addu adha adhd adhu adra adua adub adur ahab ahac ahad ahah ahal ahar ahau ahdl ahha ahla ahlu ahra ahrc ahrr ahua alaa alac alad alal alar alau alb- alba albc albu alca alcc ald- alda aldl alha all- alla allh alll allr allu alua alur arab arac arad arah aral arar arau arba arbh arc- arca arch arda ardc ardl ardu arh- arla arr- arra arrc arrh arrr arru arua arub arud arul auaa auca auch audc audh aul- aula auld aull aulu aur- aura aurd baaa baad baah baal baar baba babb babr babu bac- baca bacc bach bada badb badd badh badr badu baha bahl bahr bahu bala balc bald ball balu bar- bara barb barc bard barh barr baru bau- baud baul baur bbad bbau bbbb bbch bbdd bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bchd bcra bcru bcuc bd-r bdbc bddc bddh bhar bhca bhcc bhdl bhra bhur bhuu blaa blab blac blad blah blau blcu bldc bldr blrc blub blud blur brab brac brad brah brau brca brcb brda brrr bruc brud bruh buad bual buar buba bubb bubu buca bucc buch bucu buda budb budd budl budu buha buhl buhr bula bulb buld bull bulu bur- bura burb burd burh burl burr buru c-cd caaa caab caac caah caal caba cabu cac- caca cacc cach cacr cada cadc cadd cadr cadu caha cahl cala calc cald call calu cara carb carc card carl carr cauc caul cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbcu cbdb cbdc cbha cbhl cblb cblc cbrd cbrh cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl cccu ccdc ccdh ccdr ccha cchl cchr ccla cclc ccra ccrc ccrl ccuc cd-r cdaa cdac cdad cdba cdda cddb cddl cddr chaa chab chac chad chah chal char chau chca chch chha chlc chlr chra chrb chrc chrd chrr chua chub chud chul chur clab clad clar clau clcd cldc cldr clra clrd club clud cluh crab crac crar crau crbc crbu crca crcc crcr crda crdc crub crud cuau cub- cuba cubb cuca cucc cuda cula culb culc culd cull cura curb curd curl curr daab daad daal daar daau daba dabb dabu daca dada dadu daha dahl