-er -th a-a a-b a-t aaa aab aad aae aaf aah aak aar aat ab- aba abb abd abe abf abh abk abr abt ad- ada adb add ade adf adh adk adr adt aea aeb aed aee aef aeh aek aer aet af- afa afb afd afe aff afh afk afr aft aha ahb ahd ahe ahf ahh ahk ahr aht aka akb akd ake akh akk akr ar- ara arb ard are arf arh ark arr art at- ata atb atd ate atf ath atr att baa bab bad bae baf bah bak bar bat bba bbb bbd bbe bbf bbh bbk bbr bbt bda bdb bdd bde bdf bdh bdk bdr bdt be- bea beb bed bee bef beh bek ber bet bfa bfb bfd bfe bff bfh bfr bft bha bhb bhd bhe bhf bhh bhk bhr bht bka bkb bke bkf bkk bkr bkt bra brb brd bre brf brh brk brr brt bta btb btd bte btf bth btk btr btt daa dab dad dae daf dah dak dar dat dba dbb dbd dbe dbf dbh dbk dbr dbt dda ddb ddd dde ddf ddh ddk ddr ddt de- dea deb ded dee def deh dek der det dfa dfb dfd dfe dff dfh dfk dfr dft dh- dha dhb dhd dhe dhf dhh dhk dhr dht dka dkb dke dkk dkr dkt dra drb drd dre drk drr drt dta dtb dtd dte dtf dth dtk dtr dtt eaa eab ead eae eaf eah eak ear eat eba ebb ebd ebe ebf ebh ebk ebr ebt ed- eda edb edd ede edf edh edk edr edt eea eeb eed eee eef eek eer eet ef- efa efb efd efe eff efh efr eft eha ehb ehd ehe ehf ehh ehr eht eka ekb ekd eke ekf ekh ekr ekt era erb erd ere erf erh erk err ert eta etb etd ete etf eth etk etr ett faa fab fad fae faf fah fak far fat fba fbb fbd fbe fbf fbh fbk fbr fbt fda fdb fdd fde fdf fdh fdk fdr fdt fea feb fed fee fef feh fek fer fet ffa ffd ffe fff ffh ffk ffr fft fha fhb fhe fhf fhh fhr fka fkb fkf fkk fkt fra frb frd fre frf frh frk frr frt fta ftb ftd fte ftf fth ftk ftr ftt haa hab had hae haf hah hak har hat hba hbb hbd hbe hbf hbh hbk hbr hbt hda hdb hdd hde hdf hdh hdk hdr hdt he- hea heb hed hee hef heh hek her het hfa hfb hfd hfe hff hfh hfk hfr hft hha hhb hhd hhe hhf hhh hhk hhr hht hka hkb hkd hkf hkh hkk hkr hkt hr- hra hrb hrd hre hrf hrh hrk hrr hrt hta htb htd hte htf hth htk htr htt k-t ka- kaa kab kad kae kaf kah kak kar kat kba kbb kbd kbe kbf kbh kbk kbr kda kdb kde kdf kdh kdk kdr kdt ke- kea keb ked kee kef keh kek ker ket kfa kfd kff kfh kha khe khf khh khk khr kkb kke kkh kkk kkr kkt kra krd krf krk krr krt kta ktb kte ktf kth ktk ktr ktt ra- raa rab rad rae raf rah rak rar rat rba rbb rbd rbe rbf rbh rbk rbr rbt rda rdb rdd rde rdf rdh rdr rdt re- rea reb red ree ref reh rek rer ret rfa rfb rfd rfe rff rfh rfk rfr rft rh- rha rhb rhd rhe rhf rhh rhr rht rkb rke rkf rkk rkt rra rrb rrd rrf rrh rrk rrr rrt rta rtb rtd rte rtf rtk rtr rtt taa tab tad tae taf tah tak tar tat tba tbb tbd tbe tbf tbh tbk tbr tbt tda tdb tdd tde tdf tdh tdk tdr tdt te- tea teb ted tee tef teh tek ter tet tfa tfb tfd tfe tff tfh tfk tfr tft th- tha thb thd the thf thh thk thr tht tka tkb tke tkk tkr tkt tra trb trd tre trf trh trk trr trt tta ttb ttd tte ttf tth ttk ttr ttt