-al a-a a-b a-t aaa aab aad aae aaf aak aal aan aat ab- aba abb abd abe abf abk abl abn abt ad- ada adb add ade adf adk adl adn adt aea aeb aed aee aef aek ael aen aet af- afa afb afd afe aff afk afl afn aft aka akb akd ake akk akl akn al- ala alb ald ale alf alk all aln alt an- ana anb and ane anf ank anl ann ant at- ata atb atd ate atf atl atn att baa bab bad bae baf bak bal ban bat bba bbb bbd bbe bbf bbk bbl bbn bbt bda bdb bdd bde bdf bdk bdl bdt be- bea beb bed bee bef bek bel ben bet bfa bfb bfd bfe bff bfl bfn bft bka bkb bke bkf bkk bkl bkn bkt bla blb bld ble blf blk bll bln blt bna bnb bnd bne bnf bnk bnl bnn bnt bta btb btd bte btf btk btl btn btt daa dab dad dae daf dak dal dan dat dba dbb dbd dbe dbf dbk dbl dbn dbt dda ddb ddd dde ddf ddk ddl ddn ddt de- dea deb ded dee def dek del den det dfa dfb dfd dfe dff dfk dfl dfn dft dka dkb dke dkk dkl dkt dl- dla dlb dld dle dlf dlk dll dlt dna dnb dnd dne dnf dnk dnl dnn dnt dta dtb dtd dte dtf dtk dtl dtn dtt eaa eab ead eae eaf eak eal ean eat eba ebb ebd ebe ebf ebk ebl ebn ebt ed- eda edb edd ede edf edk edl edn edt eea eeb eed eee eef eek eel een eet ef- efa efb efd efe eff efl eft eka ekb ekd eke ekf ekl ekt ela elb eld ele elf elk ell eln elt en- ena enb end ene enf enk enl enn ent eta etb etd ete etf etk etl etn ett faa fab fad fae faf fak fal fan fat fba fbb fbd fbe fbf fbk fbl fbn fbt fda fdb fdd fde fdf fdk fdl fdn fdt fea feb fed fee fef fek fel fen fet ffa ffd ffe fff ffk ffl ffn fft fka fkb fkf fkk fkl fkt fla flb fld fle flf fll fln flt fna fnb fnd fne fnf fnk fnl fnn fnt fta ftb ftd fte ftf ftk ftl ftn ftt k-t ka- kaa kab kad kae kaf kak kal kan kat kba kbb kbd kbe kbf kbk kbl kbn kda kdb kde kdf kdk kdl kdt ke- kea keb ked kee kef kek kel ken ket kfa kfd kff kkb kke kkk kkl kkn kkt kl- kla klb kld klf klt kn- kna knd kne knf knk knl knn knt kta ktb kte ktf ktk ktl ktn ktt la- laa lab lad lae laf lak lal lan lat lba lbb lbd lbe lbf lbk lbl lbt lda ldb ldd lde ldf ldk ldl ldn ldt lea leb led lee lef lek lel len let lfa lfb lfd lfe lff lfk lfl lfn lft lka lkb lkl lkt lla llb lld lle llf llk lll lln llt lna lnb lnd lne lnk lnl lnn lnt lta ltb ltd lte ltf ltk ltl ltt naa nab nad nae naf nak nal nan nat nba nbb nbd nbe nbf nbk nbl nbn nbt nda ndb ndd nde ndf ndk ndl ndn ndt ne- nea neb ned nee nef nek nel nen net nfa nfb nfd nfe nff nfk nfl nfn nft nka nke nkf nkk nkn nkt nla nlb nld nle nlf nlk nll nln nlt nna nnb nne nnf nnk nnl nnn nnt nta ntb ntd nte ntf ntk ntn ntt taa tab tad tae taf tak tal tan tat tba tbb tbd tbe tbf tbk tbl tbn tbt tda tdb tdd tde tdf tdk tdl tdn tdt te- tea teb ted tee tef tek tel ten tet tfa tfb tfd tfe tff tfk tfl tfn tft tka tkb tke tkk tkl tkt tla tld tle tlf tlk tll tln tlt tna tnb tnd tne tnf tnk tnl tnn tnt tta ttb ttd tte ttf ttk ttl ttn ttt