-er a-a a-b aaa aab aad aae aah aan aar aau ab- aba abb abd abe abh abn abr abu ad- ada adb add ade adh adn adr adu aea aeb aed aee aeh aen aer aeu aha ahb ahd ahe ahh ahn ahr ahu an- ana anb and ane anh ann anr anu ar- ara arb ard are arh arn arr aru au- aua aub aud aue auh aun aur b-u baa bab bad bae bah ban bar bau bba bbb bbd bbe bbh bbn bbr bbu bda bdb bdd bde bdh bdr bdu be- bea beb bed bee beh ben ber beu bha bhb bhd bhe bhh bhr bhu bna bnb bnd bne bnn bnr bnu bra brb brd bre brh brn brr bru bua bub bud bue buh bun bur buu daa dab dad dae dah dan dar dau dba dbb dbd dbe dbh dbn dbr dbu dda ddb ddd dde ddh ddn ddr ddu de- dea deb ded dee deh den der deu dh- dha dhb dhd dhe dhh dhr dhu dna dnb dnd dne dnh dnn dnr dra drb drd dre drn drr dru dua dub dud due duh dun dur eaa eab ead eae eah ean ear eau eba ebb ebd ebe ebh ebn ebr ebu ed- eda edb edd ede edh edn edr edu eea eeb eed eee een eer eha ehb ehd ehe ehh ehn ehr ehu en- ena enb end ene enh enn enr enu era erb erd ere erh ern err eru eu- eua eub eud eue eun eur haa hab had hae hah han har hau hba hbb hbd hbe hbh hbn hbr hbu hda hdb hdd hde hdh hdn hdr hdu he- hea heb hed hee heh hen her heu hha hhb hhd hhe hhh hhn hhr hhu hna hnb hnd hne hnh hnn hnu hr- hra hrb hrd hre hrh hrn hrr hru hua hub hud hue huh hun hur huu naa nab nad nae nah nan nar nau nba nbb nbd nbe nbn nbr nbu nda ndb ndd nde ndh ndn ndr ndu ne- nea neb ned nee neh nen ner neu nha nhb nhd nhe nhh nhn nhr nhu nna nnb nne nnh nnn nnu nra nrb nrd nre nrn nrr nru nua nub nud nue nuh nun nur nuu ra- raa rab rad rae rah ran rar rau rba rbb rbd rbe rbh rbn rbr rbu rda rdb rdd rde rdh rdn rdr rdu re- rea reb red ree reh ren rer reu rh- rha rhb rhd rhe rhh rhn rhr rhu rna rnb rnd rnh rnn rnr rnu rra rrb rrd rrh rrn rrr rru rua rub rud rue ruh run rur ruu ua- uaa uab uad uae uah uan uar uau uba ubb ube ubh ubn ubr ubu uda udb udd ude udn udr udu uea ueb ued uee ueh uen uer uha uhb uhd uhe uhh uhr uhu un- una unb und une unh unn unr unu ur- ura urb urd ure urn urr uru uua uue uun uur uuu