-er a-a a-b a-c aaa aab aac aad aae aah aar aau ab- aba abb abc abd abe abh abr abu ac- aca acb acc acd ace ach acr acu ad- ada adb adc add ade adh adr adu aea aeb aec aed aee aeh aer aeu aha ahb ahc ahd ahe ahh ahr ahu ar- ara arb arc ard are arh arr aru au- aua aub auc aud aue auh aur b-u baa bab bac bad bae bah bar bau bba bbb bbc bbd bbe bbh bbr bbu bca bcb bcc bcd bce bch bcr bcu bda bdb bdc bdd bde bdh bdr bdu be- bea beb bec bed bee beh ber beu bha bhb bhc bhd bhe bhh bhr bhu bra brb brd bre brh brr bru bua bub buc bud bue buh bur buu c-- caa cab cac cad cae cah car cau cba cbb cbc cbd cbe cbh cbr cbu cca ccb ccc ccd cce cch ccr ccu cda cdb cdc cdd cde cdh cdr cdu ce- cea ceb cec ced cee ceh cer ceu ch- cha chb chc chd che chh chr chu cra crb crc crd cre crh crr cru cua cub cuc cud cue cuh cur cuu daa dab dac dad dae dah dar dau dba dbb dbc dbd dbe dbh dbr dbu dca dcb dcc dcd dce dcr dcu dda ddb ddc ddd dde ddh ddr ddu de- dea deb dec ded dee deh der deu dh- dha dhb dhc dhd dhe dhh dhr dhu dra drb drc drd dre drr dru dua dub duc dud due duh dur eaa eab eac ead eae eah ear eau eba ebb ebc ebd ebe ebh ebr ebu ec- eca ecb ecc ecd ece ech ecr ecu ed- eda edb edc edd ede edh edr edu eea eeb eec eed eee eer eha ehb ehc ehd ehe ehh ehr ehu era erb erc erd ere erh err eru eu- eua eub euc eud eue eur haa hab hac had hae hah har hau hba hbb hbc hbd hbe hbh hbr hbu hca hcb hcc hcd hce hch hcr hda hdb hdc hdd hde hdh hdr hdu he- hea heb hec hed hee heh her heu hha hhb hhc hhd hhe hhh hhr hhu hr- hra hrb hrc hrd hre hrh hrr hru hua hub huc hud hue huh hur huu ra- raa rab rac rad rae rah rar rau rba rbb rbc rbd rbe rbh rbr rbu rca rcb rcc rcd rce rch rcr rcu rda rdb rdc rdd rde rdh rdr rdu re- rea reb rec red ree reh rer reu rh- rha rhb rhc rhd rhe rhh rhr rhu rra rrb rrc rrd rrh rrr rru rua rub ruc rud rue ruh rur ruu ua- uaa uab uac uad uae uah uar uau uba ubb ubc ube ubh ubr ubu uca ucb ucc ucd uce uch ucr ucu uda udb udc udd ude udr udu uea ueb uec ued uee ueh uer uha uhb uhc uhd uhe uhh uhr uhu ur- ura urb urc urd ure urr uru uua uuc uue uur uuu

a-be a-ha aaaa aaab aaac aaad aaae aaah aaar aaba aabb aabc aabd aabh aaca aacb aacc aacd aace aach aacr aacu aada aadc aade aadu aaea aaec aaha aara aarc aard aare aaru abaa abab abac abad abae abar abau abb- abba abbb abbe abbr abca abcb abcc abcd abch abcr abda abdu abec abed abee aber abha abhr abra abrc abua abud abue acaa acab acac acad acae acar acba acca accc accd acce acch accu acda acdb acdc acde ace- acea acec aced aceh acer acha ache achh achr achu acr- acra acrc acre acrr acu- acue acur adaa adab adac adad adae adah adar adba adbc adcc adda addc addd adde addr addu adea adeb adee adeh ader adha adhd adhu adra adre adua adub adue adur aeac aecb aede aeer aer- aera aerc aerd ahab ahac ahad ahah ahar ahau ahed ahha ahra ahrc ahre ahrr ahua arab arac arad arae arah arar arau arba arbe arbh arc- arca arce arch arda ardc arde ardu area arec ared aree areh areu arh- arr- arra arrc arre arrh arrr arru arua arub arud arue auaa aube auca auce auch audc aude audh auer aur- aura aurd aure baaa baad baah baar baba babb babe babr babu bac- baca bacc bace bach bada badb badd bade badh badr badu baed baer baha bahr bahu bar- bara barb barc bard bare barh barr baru bau- baud baur bbad bbau bbbb bbch bbdd bbeb bbrc bcaa bcar bcbc bcca bccc bcda bcde bcec bcer bchd bche bcra bcru bcuc bd-r bdbc bddc bddh bead beah bear beau beba bebb bebe beca bech becu beda bede bedu beeb beed beer behr bera berc berd bere berr beru beur bhar bhca bhcc bher bhra bhur bhuu brab brac brad brae brah brau brca brcb brce brda brea breb brec bred bree brer brrr bruc brud brue bruh buad buar buba bubb bube bubu buca bucc buce buch bucu buda budb budd bude budu buea buer bueu buha buhe buhr bur- bura burb burd bure burh burr buru c-cd caaa caab caac caah caba cabe cabu cac- caca cacc cace cach cacr cada cadc cadd cade cadr cadu caec caer caeu caha cahe cara carb carc card care carr cauc cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbdb cbdc cbea cbec cbee cber cbha cbrd cbre cbrh ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccu ccdc ccdh ccdr cced ccee ccha cche cchr ccra ccrc ccre ccuc cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdre ceac cead cear ceba cebu cec- ceca cece ceda cedd cede cedu ceeb ceec cer- cera cerc cerd cere chaa chab chac chad chae chah char chau chca chce chch chea cheb chec ched chee cheh cher cheu chha chra chrb chrc chrd chrr chua chub chud chur crab