-th a-a a-b a-t aaa aab aad aah aak aar aat ab- aba abb abd abh abk abr abt ad- ada adb add adh adk adr adt aha ahb ahd ahh ahk ahr aht aka akb akd akh akk akr ar- ara arb ard arh ark arr art at- ata atb atd ath atr att baa bab bad bah bak bar bat bba bbb bbd bbh bbk bbr bbt bda bdb bdd bdh bdk bdr bdt bha bhb bhd bhh bhk bhr bht bka bkb bkk bkr bkt bra brb brd brh brk brr brt bta btb btd bth btk btr btt daa dab dad dah dak dar dat dba dbb dbd dbh dbk dbr dbt dda ddb ddd ddh ddk ddr ddt dh- dha dhb dhd dhh dhk dhr dht dka dkb dkk dkr dkt dra drb drd drk drr drt dta dtb dtd dth dtk dtr dtt haa hab had hah hak har hat hba hbb hbd hbh hbk hbr hbt hda hdb hdd hdh hdk hdr hdt hha hhb hhd hhh hhk hhr hht hka hkb hkd hkh hkk hkr hkt hr- hra hrb hrd hrh hrk hrr hrt hta htb htd hth htk htr htt k-t ka- kaa kab kad kah kak kar kat kba kbb kbd kbh kbk kbr kda kdb kdh kdk kdr kdt kha khh khk khr kkb kkh kkk kkr kkt kra krd krk krr krt kta ktb kth ktk ktr ktt ra- raa rab rad rah rak rar rat rba rbb rbd rbh rbk rbr rbt rda rdb rdd rdh rdr rdt rh- rha rhb rhd rhh rhr rht rkb rkk rkt rra rrb rrd rrh rrk rrr rrt rta rtb rtd rtk rtr rtt taa tab tad tah tak tar tat tba tbb tbd tbh tbk tbr tbt tda tdb tdd tdh tdk tdr tdt th- tha thb thd thh thk thr tht tka tkb tkk tkr tkt tra trb trd trh trk trr trt tta ttb ttd tth ttk ttr ttt