-er a-a a-b aaa aab aad aae aaf aah aar aau ab- aba abb abd abe abf abh abr abu ad- ada adb add ade adf adh adr adu aea aeb aed aee aef aeh aer aeu af- afa afb afd afe aff afh afr afu aha ahb ahd ahe ahf ahh ahr ahu ar- ara arb ard are arf arh arr aru au- aua aub aud aue auf auh aur b-u baa bab bad bae baf bah bar bau bba bbb bbd bbe bbf bbh bbr bbu bda bdb bdd bde bdf bdh bdr bdu be- bea beb bed bee bef beh ber beu bfa bfb bfd bfe bff bfh bfr bfu bha bhb bhd bhe bhf bhh bhr bhu bra brb brd bre brf brh brr bru bua bub bud bue buf buh bur buu daa dab dad dae daf dah dar dau dba dbb dbd dbe dbf dbh dbr dbu dda ddb ddd dde ddf ddh ddr ddu de- dea deb ded dee def deh der deu dfa dfb dfd dfe dff dfh dfr dfu dh- dha dhb dhd dhe dhf dhh dhr dhu dra drb drd dre drr dru dua dub dud due duf duh dur eaa eab ead eae eaf eah ear eau eba ebb ebd ebe ebf ebh ebr ebu ed- eda edb edd ede edf edh edr edu eea eeb eed eee eef eer ef- efa efb efd efe eff efh efr eha ehb ehd ehe ehf ehh ehr ehu era erb erd ere erf erh err eru eu- eua eub eud eue euf eur faa fab fad fae faf fah far fau fba fbb fbd fbe fbf fbh fbr fbu fda fdb fdd fde fdf fdh fdr fdu fea feb fed fee fef feh fer feu ffa ffd ffe fff ffh ffr ffu fha fhb fhe fhf fhh fhr fra frb frd fre frf frh frr fru fua fub fud fue fuf fur fuu haa hab had hae haf hah har hau hba hbb hbd hbe hbf hbh hbr hbu hda hdb hdd hde hdf hdh hdr hdu he- hea heb hed hee hef heh her heu hfa hfb hfd hfe hff hfh hfr hfu hha hhb hhd hhe hhf hhh hhr hhu hr- hra hrb hrd hre hrf hrh hrr hru hua hub hud hue huf huh hur huu ra- raa rab rad rae raf rah rar rau rba rbb rbd rbe rbf rbh rbr rbu rda rdb rdd rde rdf rdh rdr rdu re- rea reb red ree ref reh rer reu rfa rfb rfd rfe rff rfh rfr rfu rh- rha rhb rhd rhe rhf rhh rhr rhu rra rrb rrd rrf rrh rrr rru rua rub rud rue ruf ruh rur ruu ua- uaa uab uad uae uaf uah uar uau uba ubb ube ubf ubh ubr ubu uda udb udd ude udf udr udu uea ueb ued uee uef ueh uer ufa ufd ufe uff ufh ufr ufu uha uhb uhd uhe uhf uhh uhr uhu ur- ura urb urd ure urf urr uru uua uue uur uuu

a-be a-fu a-ha aaaa aaab aaad aaae aaaf aaah aaar aaba aabb aabd aabh aada aade aadu aaea aafa aafb aafd aaff aaha aara aard aare aaru abaa abab abad abae abaf abar abau abb- abba abbb abbe abbr abda abdu abed abee aber abff abha abhr abra abua abud abue abuf adaa adab adad adae adah adar adba adda addd adde addr addu adea adeb adee adeh ader adfa adha adhd adhu adra adre adua adub adue adur aeaf aede aeer aer- aera aerd afaa afad afar afdb afee afer affa afr- afra afre afru afua afud afue ahab ahad ahah ahar ahau ahed ahfa ahha ahra ahre ahrr ahua arab arad arae araf arah arar arau arba arbe arbh arda arde ardf ardu area ared aree aref areh areu arfa arfb arff arfu arh- arr- arra arre arrh arrr arru arua arub arud arue auaa aube aude audh auer aufe aur- aura aurd aure baaa baad baaf baah baar baba babb babe babr babu bada badb badd bade badh badr badu baed baer baff baha bahr bahu bar- bara barb bard bare barf barh barr baru bau- baud bauf baur bbad bbau bbbb bbdd bbeb bd-r bddh bduf bead beaf beah bear beau beba bebb bebe beda bede bedu beeb beed beef beer befa befe beff behr bera berd bere berr beru beur bhar bher bhff bhra bhur bhuu brab brad brae braf brah brau brda brea breb bred bree bref brer brfu brrr brud brue bruh buad buar buba bubb bube bubu buda budb budd bude budu buea buer bueu bufe buff bufr buha buhe buhr bur- bura burb burd bure burh burr buru daab daad daae daar daau daba dabb dabu dada dade dadu daeb daer daeu dafa dafe daff daha dahe dahu dara darb dard dare darf darr daru daub daud daue daur dbar dddd ddre ddub dead deae deaf dear deau deba debe debu deda dedd dede dedu deeb deed deef deer defe deff deha dehu der- dera derb dere derf derr deua deue deur dfaf dfer dffa dfrf dhaa dhad dhar dhau dhed dhee dher dhur draa drab drad draf drar drau drba drda drea dred dree dref dreh drra drua drub drue druu duaa duab duad duah duar dub- duba dubb dube dubh dubu duda dudd dude dudu duer duff dufu duha duhe duhr duhu dura dure duru duur eaaf eaba eabh eada eadb eadd eafb eara earb eard eare earh ebba ebbr ebed eber ebru ebur edad edah edar edda edde ede- edea edeh eder edfa edfu edra edru edur eede eedu eeea eeee eefa eefe eera efab efbr efda effa efua ehaa ehdd ehea eheh eher eheu ehre ehud erad eraf erau erba erbb erbe erda erde erdf ereb ered erer erhu erra erre erua erub eruh erur euba eude euer eur- eura eure faaa faad faah faba fabd fabe fabu fada fadd fade faeb fafa fafe faff faha