-er -th a-a a-b a-t aaa aab aae aah aak aap aar aat ab- aba abb abe abh abk abp abr abt aea aeb aee aeh aek aep aer aet aha ahb ahe ahh ahk ahp ahr aht aka akb ake akh akk akp akr ap- apa apb ape aph apk app apr apt ar- ara arb are arh ark arp arr art at- ata atb ate ath atp atr att b-p baa bab bae bah bak bap bar bat bba bbb bbe bbh bbk bbp bbr bbt be- bea beb bee beh bek bep ber bet bha bhb bhe bhh bhk bhp bhr bht bka bkb bke bkk bkp bkr bkt bpa bpb bpe bph bpp bpr bpt bra brb bre brh brk brp brr brt bta btb bte bth btk btp btr btt eaa eab eae eah eak eap ear eat eba ebb ebe ebh ebk ebp ebr ebt eea eeb eee eek eep eer eet eha ehb ehe ehh ehp ehr eht eka ekb eke ekh ekp ekr ekt ep- epa epb epe eph epp epr ept era erb ere erh erk erp err ert eta etb ete eth etk etp etr ett haa hab hae hah hak hap har hat hba hbb hbe hbh hbk hbp hbr hbt he- hea heb hee heh hek hep her het hha hhb hhe hhh hhk hhp hhr hht hka hkb hkh hkk hkp hkr hkt hpa hpb hpe hph hpk hpp hpr hpt hr- hra hrb hre hrh hrk hrp hrr hrt hta htb hte hth htk htp htr htt k-t ka- kaa kab kae kah kak kap kar kat kba kbb kbe kbh kbk kbp kbr ke- kea keb kee keh kek kep ker ket kha khe khh khk khr kkb kke kkh kkk kkp kkr kkt kpa kpe kph kpk kpp kpr kpt kra krk krp krr krt kta ktb kte kth ktk ktp ktr ktt p-p paa pab pae pah pak pap par pat pba pbb pbe pbk pbp pbr pbt pea peb pee peh pek pep per pet pha phb phe phk php phr pht pka pkb pke pkp pkr pkt ppa ppb ppe pph ppk ppp ppr ppt pra prb pre prh prk prp prr prt pt- pta ptb pte pth ptk ptp ptr ptt ra- raa rab rae rah rak rap rar rat rba rbb rbe rbh rbk rbp rbr rbt re- rea reb ree reh rek rep rer ret rh- rha rhb rhe rhh rhp rhr rht rkb rke rkk rkp rkt rpa rpb rpe rph rpk rpp rpr rpt rra rrb rrh rrk rrp rrr rrt rta rtb rte rtk rtp rtr rtt taa tab tae tah tak tap tar tat tba tbb tbe tbh tbk tbp tbr tbt te- tea teb tee teh tek tep ter tet th- tha thb the thh thk thp thr tht tka tkb tke tkk tkp tkr tkt tpa tpb tpe tph tpk tpp tpr tpt tra trb tre trh trk trp trr trt tta ttb tte tth ttk ttp ttr ttt