-er -th a-a a-b a-t aaa aab aad aae aah aar aat aau ab- aba abb abd abe abh abr abt abu ad- ada adb add ade adh adr adt adu aea aeb aed aee aeh aer aet aeu aha ahb ahd ahe ahh ahr aht ahu ar- ara arb ard are arh arr art aru at- ata atb atd ate ath atr att atu au- aua aub aud aue auh aur aut b-u baa bab bad bae bah bar bat bau bba bbb bbd bbe bbh bbr bbt bbu bda bdb bdd bde bdh bdr bdt bdu be- bea beb bed bee beh ber bet beu bha bhb bhd bhe bhh bhr bht bhu bra brb brd bre brh brr brt bru bta btb btd bte bth btr btt btu bua bub bud bue buh bur but buu daa dab dad dae dah dar dat dau dba dbb dbd dbe dbh dbr dbt dbu dda ddb ddd dde ddh ddr ddt ddu de- dea deb ded dee deh der det deu dh- dha dhb dhd dhe dhh dhr dht dhu dra drb drd dre drr drt dru dta dtb dtd dte dth dtr dtt dtu dua dub dud due duh dur dut eaa eab ead eae eah ear eat eau eba ebb ebd ebe ebh ebr ebt ebu ed- eda edb edd ede edh edr edt edu eea eeb eed eee eer eet eha ehb ehd ehe ehh ehr eht ehu era erb erd ere erh err ert eru eta etb etd ete eth etr ett etu eu- eua eub eud eue eur eut haa hab had hae hah har hat hau hba hbb hbd hbe hbh hbr hbt hbu hda hdb hdd hde hdh hdr hdt hdu he- hea heb hed hee heh her het heu hha hhb hhd hhe hhh hhr hht hhu hr- hra hrb hrd hre hrh hrr hrt hru hta htb htd hte hth htr htt hua hub hud hue huh hur hut huu ra- raa rab rad rae rah rar rat rau rba rbb rbd rbe rbh rbr rbt rbu rda rdb rdd rde rdh rdr rdt rdu re- rea reb red ree reh rer ret reu rh- rha rhb rhd rhe rhh rhr rht rhu rra rrb rrd rrh rrr rrt rru rta rtb rtd rte rtr rtt rtu rua rub rud rue ruh rur rut ruu taa tab tad tae tah tar tat tau tba tbb tbd tbe tbh tbr tbt tbu tda tdb tdd tde tdh tdr tdt tdu te- tea teb ted tee teh ter tet teu th- tha thb thd the thh thr tht thu tra trb trd tre trh trr trt tru tta ttb ttd tte tth ttr ttt ttu tua tub tud tue tuh tur tut tuu ua- uaa uab uad uae uah uar uat uau uba ubb ube ubh ubr ubt ubu uda udb udd ude udr udt udu uea ueb ued uee ueh uer uet uha uhb uhd uhe uhh uhr uht uhu ur- ura urb urd ure urr urt uru uta utb utd ute uth utr utt utu uua uue uur uut uuu