-er -th a-a a-b a-t aaa aab aae aag aah aak aan aar aat ab- aba abb abe abg abh abk abn abr abt aea aeb aee aeg aeh aek aen aer aet ag- aga agb age agg agh agk agn agr agt aha ahb ahe ahg ahh ahk ahn ahr aht aka akb ake akg akh akk akn akr an- ana anb ane ang anh ank ann anr ant ar- ara arb are arg arh ark arn arr art at- ata atb ate atg ath atn atr att baa bab bae bag bah bak ban bar bat bba bbb bbe bbg bbh bbk bbn bbr bbt be- bea beb bee beg beh bek ben ber bet bga bgb bge bgg bgh bgk bgn bgr bgt bha bhb bhe bhg bhh bhk bhr bht bka bkb bke bkg bkk bkn bkr bkt bna bnb bne bng bnk bnn bnr bnt bra brb bre brg brh brk brn brr brt bta btb bte btg bth btk btn btr btt eaa eab eae eag eah eak ean ear eat eba ebb ebe ebg ebh ebk ebn ebr ebt eea eeb eee eeg eek een eer eet ega egb ege egg egh egn egr egt eha ehb ehe ehg ehh ehn ehr eht eka ekb eke ekg ekh ekr ekt en- ena enb ene eng enh enk enn enr ent era erb ere erg erh erk ern err ert eta etb ete etg eth etk etn etr ett gaa gab gae gag gah gak gan gar gat gba gbe gbg gbh gbk gbn gbr gbt ge- gea geb gee geg geh gek gen ger get gga ggb ggg ggh ggn ggr ggt gha ghb ghe ghg ghh ghn ghr ght gka gkb gkh gkn gkt gna gnb gne gnn gnr gnt gra grb gre grg grh grk grn grr grt gta gtb gte gtg gth gtk gtn gtr gtt haa hab hae hag hah hak han har hat hba hbb hbe hbg hbh hbk hbn hbr hbt he- hea heb hee heg heh hek hen her het hga hgb hge hgg hgh hgk hgn hgr hgt hha hhb hhe hhg hhh hhk hhn hhr hht hka hkb hkg hkh hkk hkn hkr hkt hna hnb hne hng hnh hnk hnn hnt hr- hra hrb hre hrg hrh hrk hrn hrr hrt hta htb hte htg hth htk htn htr htt k-t ka- kaa kab kae kag kah kak kan kar kat kba kbb kbe kbh kbk kbn kbr ke- kea keb kee keg keh kek ken ker ket kga kgb kgh kha khe khh khk khn khr kkb kke kkh kkk kkn kkr kkt kn- kna kne kng knk knn knr knt kra krg krk krn krr krt kta ktb kte ktg kth ktk ktn ktr ktt naa nab nae nag nah nak nan nar nat nba nbb nbe nbg nbk nbn nbr nbt ne- nea neb nee neg neh nek nen ner net nga ngb nge ngg ngh ngk ngn ngt nha nhb nhe nhg nhh nhk nhn nhr nht nka nke nkk nkn nkr nkt nna nnb nne nng nnh nnk nnn nnt nra nrb nre nrg nrk nrn nrr nrt nta ntb nte ntg nth ntk ntn ntr ntt ra- raa rab rae rag rah rak ran rar rat rba rbb rbe rbg rbh rbk rbn rbr rbt re- rea reb ree reg reh rek ren rer ret rga rgb rge rgg rgh rgk rgn rgr rgt rh- rha rhb rhe rhg rhh rhn rhr rht rkb rke rkg rkk rkt rna rnb rng rnh rnn rnr rnt rra rrb rrg rrh rrk rrn rrr rrt rta rtb rte rtg rtk rtn rtr rtt taa tab tae tag tah tak tan tar tat tba tbb tbe tbg tbh tbk tbn tbr tbt te- tea teb tee teg teh tek ten ter tet tga tgb tge tgg tgh tgk tgn tgr tgt th- tha thb the thg thh thk thn thr tht tka tkb tke tkg tkk tkr tkt tna tnb tne tng tnh tnk tnn tnr tnt tra trb tre trg trh trk trn trr trt tta ttb tte ttg tth ttk ttn ttr ttt