-er -th a-a a-t aaa aad aae aah aar aat ad- ada add ade adh adr adt aea aed aee aeh aer aet aha ahd ahe ahh ahr aht ar- ara ard are arh arr art at- ata atd ate ath atr att daa dad dae dah dar dat dda ddd dde ddh ddr ddt de- dea ded dee deh der det dh- dha dhd dhe dhh dhr dht dra drd dre drr drt dta dtd dte dth dtr dtt eaa ead eae eah ear eat ed- eda edd ede edh edr edt eea eed eee eer eet eha ehd ehe ehh ehr eht era erd ere erh err ert eta etd ete eth etr ett haa had hae hah har hat hda hdd hde hdh hdr hdt he- hea hed hee heh her het hha hhd hhe hhh hhr hht hr- hra hrd hre hrh hrr hrt hta htd hte hth htr htt ra- raa rad rae rah rar rat rda rdd rde rdh rdr rdt re- rea red ree reh rer ret rh- rha rhd rhe rhh rhr rht rra rrd rrh rrr rrt rta rtd rte rtr rtt taa tad tae tah tar tat tda tdd tde tdh tdr tdt te- tea ted tee teh ter tet th- tha thd the thh thr tht tra trd tre trh trr trt tta ttd tte tth ttr ttt