-er -th a-a a-b a-t aaa aab aad aae aah aao aar aat aau ab- aba abb abd abe abh abo abr abt abu ad- ada adb add ade adh ado adr adt adu aea aeb aed aee aeh aeo aer aet aeu aha ahb ahd ahe ahh aho ahr aht ahu aoa aob aod aoe aoh aoo aor aot aou ar- ara arb ard are arh aro arr art aru at- ata atb atd ate ath ato atr att atu au- aua aub aud aue auh auo aur aut b-u baa bab bad bae bah bao bar bat bau bba bbb bbd bbe bbh bbo bbr bbt bbu bda bdb bdd bde bdh bdo bdr bdt bdu be- bea beb bed bee beh beo ber bet beu bha bhb bhd bhe bhh bho bhr bht bhu boa bob bod boe boh boo bor bot bou bra brb brd bre brh bro brr brt bru bta btb btd bte bth bto btr btt btu bua bub bud bue buh buo bur but buu daa dab dad dae dah dao dar dat dau dba dbb dbd dbe dbh dbo dbr dbt dbu dda ddb ddd dde ddh ddo ddr ddt ddu de- dea deb ded dee deh deo der det deu dh- dha dhb dhd dhe dhh dho dhr dht dhu doa dob dod doe doh doo dor dot dou dra drb drd dre dro drr drt dru dta dtb dtd dte dth dto dtr dtt dtu dua dub dud due duh duo dur dut eaa eab ead eae eah eao ear eat eau eba ebb ebd ebe ebh ebo ebr ebt ebu ed- eda edb edd ede edh edo edr edt edu eea eeb eed eee eeo eer eet eha ehb ehd ehe ehh eho ehr eht ehu eo- eoa eob eod eoe eoh eoo eor eot eou era erb erd ere erh ero err ert eru eta etb etd ete eth eto etr ett etu eu- eua eub eud eue eur eut haa hab had hae hah hao har hat hau hba hbb hbd hbe hbh hbo hbr hbt hbu hda hdb hdd hde hdh hdo hdr hdt hdu he- hea heb hed hee heh heo her het heu hha hhb hhd hhe hhh hho hhr hht hhu hoa hob hod hoe hoh hoo hor hot hou hr- hra hrb hrd hre hrh hro hrr hrt hru hta htb htd hte hth hto htr htt hua hub hud hue huh huo hur hut huu oaa oab oad oae oah oao oar oat oau ob- oba obb obd obe obh obo obr obt obu oda odb odd ode odh odo odr odt odu oea oeb oed oee oeh oeo oer oet oha ohd ohe ohh oho ohr oht ohu oo- ooa oob ood ooh ooo oor oot or- ora orb ord ore orh oro orr ort oru ot- ota otb otd ote oth oto otr ott otu ou- oua oud oue ouh ouo our out ra- raa rab rad rae rah rao rar rat rau rba rbb rbd rbe rbh rbo rbr rbt rbu rda rdb rdd rde rdh rdo rdr rdt rdu re- rea reb red ree reh reo rer ret reu rh- rha rhb rhd rhe rhh rho rhr rht rhu roa rob rod roe roh roo ror rot rou rra rrb rrd rrh rrr rrt rru rta rtb rtd rte rto rtr rtt rtu rua rub rud rue ruh ruo rur rut ruu taa tab tad tae tah tao tar tat tau tba tbb tbd tbe tbh tbo tbr tbt tbu tda tdb tdd tde tdh tdo tdr tdt tdu te- tea teb ted tee teh teo ter tet teu th- tha thb thd the thh tho thr tht thu to- toa tob tod toe toh too tor tot tou tra trb trd tre trh tro trr trt tru tta ttb ttd tte tth tto ttr ttt ttu tua tub tud tue tuh tuo tur tut tuu ua- uaa uab uad uae uah uao uar uat uau uba ubb ube ubh ubo ubr ubt ubu uda udb udd ude udo udr udt udu uea ueb ued uee ueh uer uet uha uhb uhd uhe uhh uho uhr uht uhu uoa uob uod uoe uoo uor uot ur- ura urb urd ure uro urr urt uru uta utb utd ute uth uto utr utt utu uua uue uur uut uuu