-er a-a a-b a-c aaa aab aac aae aah aar aau ab- aba abb abc abe abh abr abu ac- aca acb acc ace ach acr acu aea aeb aec aee aeh aer aeu aha ahb ahc ahe ahh ahr ahu ar- ara arb arc are arh arr aru au- aua aub auc aue auh aur b-u baa bab bac bae bah bar bau bba bbb bbc bbe bbh bbr bbu bca bcb bcc bce bch bcr bcu be- bea beb bec bee beh ber beu bha bhb bhc bhe bhh bhr bhu bra brb bre brh brr bru bua bub buc bue buh bur buu c-- caa cab cac cae cah car cau cba cbb cbc cbe cbh cbr cbu cca ccb ccc cce cch ccr ccu ce- cea ceb cec cee ceh cer ceu ch- cha chb chc che chh chr chu cra crb crc cre crh crr cru cua cub cuc cue cuh cur cuu eaa eab eac eae eah ear eau eba ebb ebc ebe ebh ebr ebu ec- eca ecb ecc ece ech ecr ecu eea eeb eec eee eer eha ehb ehc ehe ehh ehr ehu era erb erc ere erh err eru eu- eua eub euc eue eur haa hab hac hae hah har hau hba hbb hbc hbe hbh hbr hbu hca hcb hcc hce hch hcr he- hea heb hec hee heh her heu hha hhb hhc hhe hhh hhr hhu hr- hra hrb hrc hre hrh hrr hru hua hub huc hue huh hur huu ra- raa rab rac rae rah rar rau rba rbb rbc rbe rbh rbr rbu rca rcb rcc rce rch rcr rcu re- rea reb rec ree reh rer reu rh- rha rhb rhc rhe rhh rhr rhu rra rrb rrc rrh rrr rru rua rub ruc rue ruh rur ruu ua- uaa uab uac uae uah uar uau uba ubb ubc ube ubh ubr ubu uca ucb ucc uce uch ucr ucu uea ueb uec uee ueh uer uha uhb uhc uhe uhh uhr uhu ur- ura urb urc ure urr uru uua uuc uue uur uuu

a-be a-ha aaaa aaab aaac aaae aaah aaar aaba aabb aabc aabh aaca aacb aacc aace aach aacr aacu aaea aaec aaha aara aarc aare aaru abaa abab abac abae abar abau abb- abba abbb abbe abbr abca abcb abcc abch abcr abec abee aber abha abhr abra abrc abua abue acaa acab acac acae acar acba acca accc acce acch accu ace- acea acec aceh acer acha ache achh achr achu acr- acra acrc acre acrr acu- acue acur aeac aecb aeer aer- aera aerc ahab ahac ahah ahar ahau ahha ahra ahrc ahre ahrr ahua arab arac arae arah arar arau arba arbe arbh arc- arca arce arch area arec aree areh areu arh- arr- arra arrc arre arrh arrr arru arua arub arue auaa aube auca auce auch auer aur- aura aure baaa baah baar baba babb babe babr babu bac- baca bacc bace bach baer baha bahr bahu bar- bara barb barc bare barh barr baru bau- baur bbau bbbb bbch bbeb bbrc bcaa bcar bcbc bcca bccc bcec bcer bche bcra bcru bcuc beah bear beau beba bebb bebe beca bech becu beeb beer behr bera berc bere berr beru beur bhar bhca bhcc bher bhra bhur bhuu brab brac brae brah brau brca brcb brce brea breb brec bree brer brrr bruc brue bruh buar buba bubb bube bubu buca bucc buce buch bucu buea buer bueu buha buhe buhr bur- bura burb bure burh burr buru caaa caab caac caah caba cabe cabu cac- caca cacc cace cach cacr caec caer caeu caha cahe cara carb carc care carr cauc cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cber cbha cbre cbrh ccaa ccab ccac ccar ccba ccbc ccca cccb cccc cccu ccee ccha cche cchr ccra ccrc ccre ccuc ceac cear ceba cebu cec- ceca cece ceeb ceec cer- cera cerc cere chaa chab chac chae chah char chau chca chce chch chea cheb chec chee cheh cher cheu chha chra chrb chrc chrr chua chub chur crab crac crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree creh creu crub crue cuau cub- cuba cubb cube cuca cucc cuce cuer cura curb cure curr eaba eabh eaca eacc each eaec eara earb eare earh ebac ebba ebbc ebbr ebcc eber ebru ebur ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce echa eche ecra ecrc ecrr ecru ecua eeca eeea eeee eera eerc ehaa ehcc ehea eheh eher eheu ehre erau erba erbb erbe erca ercc erce erch ereb erec erer erhc erhu erra errc erre erua erub eruc eruh erur euba eubc euch euer eur- eura eurc eure haab haar haba habe habu hace haec haha hara harc hare harh harr haru hau- haue hbar hcbc hcca hccb hccc hcch heah hear hebb hebe hebr heca hech heeb heer hehe hera herb herc here herr heru heue heur hhaa hhhh hrac hree hrrc huac huah huba hubb hube huch hucu huea huer huhu hura hure hurr huru huub raab raba rabb rabe rabu rac- raca racc race rach racu raec raer raha rahe rahr rahu rara rarb rare raua raub rauc raue rbbb rbbr rcac rcbc rccb rccc rchb rea- reac reae rear reau reba rebb rebe rebu reca recc rece rech recr recu reeb reha rehb rehe rera rere reru reue reuu rhae rhau rhce rhea rheb rhee rhue rrah rrrr ruah ruba rubb rube rubu ruca ruce ruch ruer ruhe ruhh ruhr rura rurc rure ruru uabc uaca uarc uaru uaua ubac ubar ubba ubbe uber ubra ucar ucbc ucca ucea ucha uche ucrc ucua ueba uher uhuh urac urau urba urbe urca urch ure- urea ureh urra urre urrh urur uuuu

-aaa- aaaah aaace aaaee aaarc aabaa aabba aabra aacbc aahaa aarah aarau aarch abaab ababa ababe ababu abaca abaer abara abare abaru abbac abbar abbur abccc