-er a-a a-b aaa aab aad aae aah aan aar aas aau ab- aba abb abd abe abh abn abr abs abu ad- ada adb add ade adh adn adr ads adu aea aeb aed aee aeh aen aer aes aeu aha ahb ahd ahe ahh ahn ahr ahs ahu an- ana anb and ane anh ann anr ans anu ar- ara arb ard are arh arn arr ars aru as- asa asb asd ase ash asn asr ass asu au- aua aub aud aue auh aun aur aus b-u baa bab bad bae bah ban bar bas bau bba bbb bbd bbe bbh bbn bbr bbs bbu bda bdb bdd bde bdh bdr bds bdu be- bea beb bed bee beh ben ber bes beu bha bhb bhd bhe bhh bhr bhs bhu bna bnb bnd bne bnn bnr bns bnu bra brb brd bre brh brn brr brs bru bsa bsb bsd bse bsh bsn bsr bss bsu bua bub bud bue buh bun bur bus buu daa dab dad dae dah dan dar das dau dba dbb dbd dbe dbh dbn dbr dbs dbu dda ddb ddd dde ddh ddn ddr dds ddu de- dea deb ded dee deh den der des deu dh- dha dhb dhd dhe dhh dhr dhs dhu dna dnb dnd dne dnh dnn dnr dns dra drb drd dre drn drr drs dru dsa dsb dsd dse dsh dsn dsr dss dsu dua dub dud due duh dun dur dus eaa eab ead eae eah ean ear eas eau eba ebb ebd ebe ebh ebn ebr ebs ebu ed- eda edb edd ede edh edn edr eds edu eea eeb eed eee een eer ees eha ehb ehd ehe ehh ehn ehr ehs ehu en- ena enb end ene enh enn enr ens enu era erb erd ere erh ern err ers eru es- esa esb esd ese esh esn esr ess esu eu- eua eub eud eue eun eur eus haa hab had hae hah han har has hau hba hbb hbd hbe hbh hbn hbr hbs hbu hda hdb hdd hde hdh hdn hdr hds hdu he- hea heb hed hee heh hen her hes heu hha hhb hhd hhe hhh hhn hhr hhs hhu hna hnb hnd hne hnh hnn hns hnu hr- hra hrb hrd hre hrh hrn hrr hrs hru hsa hsb hsd hse hsh hsn hsr hss hsu hua hub hud hue huh hun hur hus huu naa nab nad nae nah nan nar nas nau nba nbb nbd nbe nbn nbr nbs nbu nda ndb ndd nde ndh ndn ndr nds ndu ne- nea neb ned nee neh nen ner nes neu nha nhb nhd nhe nhh nhn nhr nhs nhu nna nnb nne nnh nnn nns nnu nra nrb nrd nre nrn nrr nrs nru nsa nsb nsd nse nsh nsn nsr nss nsu nua nub nud nue nuh nun nur nus nuu ra- raa rab rad rae rah ran rar ras rau rba rbb rbd rbe rbh rbn rbr rbs rbu rda rdb rdd rde rdh rdn rdr rds rdu re- rea reb red ree reh ren rer res reu rh- rha rhb rhd rhe rhh rhn rhr rhs rhu rna rnb rnd rnh rnn rnr rns rnu rra rrb rrd rrh rrn rrr rrs rru rsa rsb rsd rse rsh rsn rsr rss rsu rua rub rud rue ruh run rur rus ruu saa sab sad sae sah san sar sas sau sba sbb sbd sbe sbh sbn sbr sbs sbu sda sdb sdd sde sdh sdn sdr sds sdu se- sea seb sed see seh sen ser ses seu sh- sha shb shd she shh shn shr shs shu sna snb snd sne snn snr sns snu sr- sra srb srd sre srh srn srr srs ss- ssa ssb ssd sse ssh ssn ssr sss ssu sua sub sud sue suh sun sur sus suu ua- uaa uab uad uae uah uan uar uas uau uba ubb ube ubh ubn ubr ubs ubu uda udb udd ude udn udr uds udu uea ueb ued uee ueh uen uer ues uha uhb uhd uhe uhh uhr uhs uhu un- una unb und une unh unn unr uns unu ur- ura urb urd ure urn urr urs uru usa usb usd use ush usn usr uss usu uua uue uun uur uus uuu