-al -ol a-a a-b a-t aaa aab aad aae aak aal aao aat ab- aba abb abd abe abk abl abo abt ad- ada adb add ade adk adl ado adt aea aeb aed aee aek ael aeo aet aka akb akd ake akk akl ako al- ala alb ald ale alk all alo alt aoa aob aod aoe aok aol aoo aot at- ata atb atd ate atl ato att baa bab bad bae bak bal bao bat bba bbb bbd bbe bbk bbl bbo bbt bda bdb bdd bde bdk bdl bdo bdt be- bea beb bed bee bek bel beo bet bka bkb bke bkk bkl bko bkt bla blb bld ble blk bll blo blt boa bob bod boe bok bol boo bot bta btb btd bte btk btl bto btt daa dab dad dae dak dal dao dat dba dbb dbd dbe dbk dbl dbo dbt dda ddb ddd dde ddk ddl ddo ddt de- dea deb ded dee dek del deo det dka dkb dke dkk dkl dko dkt dl- dla dlb dld dle dlk dll dlo dlt doa dob dod doe dok dol doo dot dta dtb dtd dte dtk dtl dto dtt eaa eab ead eae eak eal eao eat eba ebb ebd ebe ebk ebl ebo ebt ed- eda edb edd ede edk edl edo edt eea eeb eed eee eek eel eeo eet eka ekb ekd eke ekl eko ekt ela elb eld ele elk ell elo elt eo- eoa eob eod eoe eok eol eoo eot eta etb etd ete etk etl eto ett k-t ka- kaa kab kad kae kak kal kao kat kba kbb kbd kbe kbk kbl kbo kda kdb kde kdk kdl kdo kdt ke- kea keb ked kee kek kel keo ket kkb kke kkk kkl kkt kl- kla klb kld klo klt koa kob kod koe kok kol koo kot kta ktb kte ktk ktl kto ktt la- laa lab lad lae lak lal lao lat lba lbb lbd lbe lbk lbl lbo lbt lda ldb ldd lde ldk ldl ldo ldt lea leb led lee lek lel leo let lka lkb lkl lkt lla llb lld lle llk lll llo llt loa lob lod loe lok lol loo lot lta ltb ltd lte ltk ltl lto ltt oaa oab oad oae oak oal oao oat ob- oba obb obd obe obk obl obo obt oda odb odd ode odl odo odt oea oeb oed oee oel oeo oet oka okb okd oke okk okl oko ola olb old ole olk oll olo olt oo- ooa oob ood ook ool ooo oot ot- ota otb otd ote otk otl oto ott taa tab tad tae tak tal tao tat tba tbb tbd tbe tbk tbl tbo tbt tda tdb tdd tde tdk tdl tdo tdt te- tea teb ted tee tek tel teo tet tka tkb tke tkk tkl tko tkt tla tld tle tlk tll tlo tlt to- toa tob tod toe tok tol too tot tta ttb ttd tte ttk ttl tto ttt