-al -er a-a a-b a-t aaa aab aad aae aak aal aar aat ab- aba abb abd abe abk abl abr abt ad- ada adb add ade adk adl adr adt aea aeb aed aee aek ael aer aet aka akb akd ake akk akl akr al- ala alb ald ale alk all alr alt ar- ara arb ard are ark arl arr art at- ata atb atd ate atl atr att baa bab bad bae bak bal bar bat bba bbb bbd bbe bbk bbl bbr bbt bda bdb bdd bde bdk bdl bdr bdt be- bea beb bed bee bek bel ber bet bka bkb bke bkk bkl bkr bkt bla blb bld ble blk bll blr blt bra brb brd bre brk brl brr brt bta btb btd bte btk btl btr btt daa dab dad dae dak dal dar dat dba dbb dbd dbe dbk dbl dbr dbt dda ddb ddd dde ddk ddl ddr ddt de- dea deb ded dee dek del der det dka dkb dke dkk dkl dkr dkt dl- dla dlb dld dle dlk dll dlr dlt dra drb drd dre drk drl drr drt dta dtb dtd dte dtk dtl dtr dtt eaa eab ead eae eak eal ear eat eba ebb ebd ebe ebk ebl ebr ebt ed- eda edb edd ede edk edl edr edt eea eeb eed eee eek eel eer eet eka ekb ekd eke ekl ekr ekt ela elb eld ele elk ell elr elt era erb erd ere erk erl err ert eta etb etd ete etk etl etr ett k-t ka- kaa kab kad kae kak kal kar kat kba kbb kbd kbe kbk kbl kbr kda kdb kde kdk kdl kdr kdt ke- kea keb ked kee kek kel ker ket kkb kke kkk kkl kkr kkt kl- kla klb kld klr klt kra krd krk krl krr krt kta ktb kte ktk ktl ktr ktt la- laa lab lad lae lak lal lar lat lba lbb lbd lbe lbk lbl lbr lbt lda ldb ldd lde ldk ldl ldr ldt lea leb led lee lek lel ler let lka lkb lkl lkr lkt lla llb lld lle llk lll llr llt lra lrb lrd lrk lrr lrt lta ltb ltd lte ltk ltl ltr ltt ra- raa rab rad rae rak ral rar rat rba rbb rbd rbe rbk rbl rbr rbt rda rdb rdd rde rdl rdr rdt re- rea reb red ree rek rel rer ret rkb rke rkk rkt rla rld rle rll rlr rlt rra rrb rrd rrk rrl rrr rrt rta rtb rtd rte rtk rtl rtr rtt taa tab tad tae tak tal tar tat tba tbb tbd tbe tbk tbl tbr tbt tda tdb tdd tde tdk tdl tdr tdt te- tea teb ted tee tek tel ter tet tka tkb tke tkk tkl tkr tkt tla tld tle tlk tll tlr tlt tra trb trd tre trk trl trr trt tta ttb ttd tte ttk ttl ttr ttt