-er -th a-a a-b a-t aaa aab aad aae aah aan aar aat ab- aba abb abd abe abh abn abr abt ad- ada adb add ade adh adn adr adt aea aeb aed aee aeh aen aer aet aha ahb ahd ahe ahh ahn ahr aht an- ana anb and ane anh ann anr ant ar- ara arb ard are arh arn arr art at- ata atb atd ate ath atn atr att baa bab bad bae bah ban bar bat bba bbb bbd bbe bbh bbn bbr bbt bda bdb bdd bde bdh bdr bdt be- bea beb bed bee beh ben ber bet bha bhb bhd bhe bhh bhr bht bna bnb bnd bne bnn bnr bnt bra brb brd bre brh brn brr brt bta btb btd bte bth btn btr btt daa dab dad dae dah dan dar dat dba dbb dbd dbe dbh dbn dbr dbt dda ddb ddd dde ddh ddn ddr ddt de- dea deb ded dee deh den der det dh- dha dhb dhd dhe dhh dhr dht dna dnb dnd dne dnh dnn dnr dnt dra drb drd dre drn drr drt dta dtb dtd dte dth dtn dtr dtt eaa eab ead eae eah ean ear eat eba ebb ebd ebe ebh ebn ebr ebt ed- eda edb edd ede edh edn edr edt eea eeb eed eee een eer eet eha ehb ehd ehe ehh ehn ehr eht en- ena enb end ene enh enn enr ent era erb erd ere erh ern err ert eta etb etd ete eth etn etr ett haa hab had hae hah han har hat hba hbb hbd hbe hbh hbn hbr hbt hda hdb hdd hde hdh hdn hdr hdt he- hea heb hed hee heh hen her het hha hhb hhd hhe hhh hhn hhr hht hna hnb hnd hne hnh hnn hnt hr- hra hrb hrd hre hrh hrn hrr hrt hta htb htd hte hth htn htr htt naa nab nad nae nah nan nar nat nba nbb nbd nbe nbn nbr nbt nda ndb ndd nde ndh ndn ndr ndt ne- nea neb ned nee neh nen ner net nha nhb nhd nhe nhh nhn nhr nht nna nnb nne nnh nnn nnt nra nrb nrd nre nrn nrr nrt nta ntb ntd nte nth ntn ntr ntt ra- raa rab rad rae rah ran rar rat rba rbb rbd rbe rbh rbn rbr rbt rda rdb rdd rde rdh rdn rdr rdt re- rea reb red ree reh ren rer ret rh- rha rhb rhd rhe rhh rhn rhr rht rna rnb rnd rnh rnn rnr rnt rra rrb rrd rrh rrn rrr rrt rta rtb rtd rte rtn rtr rtt taa tab tad tae tah tan tar tat tba tbb tbd tbe tbh tbn tbr tbt tda tdb tdd tde tdh tdn tdr tdt te- tea teb ted tee teh ten ter tet th- tha thb thd the thh thn thr tht tna tnb tnd tne tnh tnn tnr tnt tra trb trd tre trh trn trr trt tta ttb ttd tte tth ttn ttr ttt