-al -er a-a a-b a-t aaa aab aae aak aal aar aat ab- aba abb abe abk abl abr abt aea aeb aee aek ael aer aet aka akb ake akk akl akr al- ala alb ale alk all alr alt ar- ara arb are ark arl arr art at- ata atb ate atl atr att baa bab bae bak bal bar bat bba bbb bbe bbk bbl bbr bbt be- bea beb bee bek bel ber bet bka bkb bke bkk bkl bkr bkt bla blb ble blk bll blr blt bra brb bre brk brl brr brt bta btb bte btk btl btr btt eaa eab eae eak eal ear eat eba ebb ebe ebk ebl ebr ebt eea eeb eee eek eel eer eet eka ekb eke ekl ekr ekt ela elb ele elk ell elr elt era erb ere erk erl err ert eta etb ete etk etl etr ett k-t ka- kaa kab kae kak kal kar kat kba kbb kbe kbk kbl kbr ke- kea keb kee kek kel ker ket kkb kke kkk kkl kkr kkt kl- kla klb klr klt kra krk krl krr krt kta ktb kte ktk ktl ktr ktt la- laa lab lae lak lal lar lat lba lbb lbe lbk lbl lbr lbt lea leb lee lek lel ler let lka lkb lkl lkr lkt lla llb lle llk lll llr llt lra lrb lrk lrr lrt lta ltb lte ltk ltl ltr ltt ra- raa rab rae rak ral rar rat rba rbb rbe rbk rbl rbr rbt re- rea reb ree rek rel rer ret rkb rke rkk rkt rla rle rll rlr rlt rra rrb rrk rrl rrr rrt rta rtb rte rtk rtl rtr rtt taa tab tae tak tal tar tat tba tbb tbe tbk tbl tbr tbt te- tea teb tee tek tel ter tet tka tkb tke tkk tkl tkr tkt tla tle tlk tll tlr tlt tra trb tre trk trl trr trt tta ttb tte ttk ttl ttr ttt