-al -ol a-a a-b a-t aaa aab aae aak aal aao aat ab- aba abb abe abk abl abo abt aea aeb aee aek ael aeo aet aka akb ake akk akl ako al- ala alb ale alk all alo alt aoa aob aoe aok aol aoo aot at- ata atb ate atl ato att baa bab bae bak bal bao bat bba bbb bbe bbk bbl bbo bbt be- bea beb bee bek bel beo bet bka bkb bke bkk bkl bko bkt bla blb ble blk bll blo blt boa bob boe bok bol boo bot bta btb bte btk btl bto btt eaa eab eae eak eal eao eat eba ebb ebe ebk ebl ebo ebt eea eeb eee eek eel eeo eet eka ekb eke ekl eko ekt ela elb ele elk ell elo elt eo- eoa eob eoe eok eol eoo eot eta etb ete etk etl eto ett k-t ka- kaa kab kae kak kal kao kat kba kbb kbe kbk kbl kbo ke- kea keb kee kek kel keo ket kkb kke kkk kkl kkt kl- kla klb klo klt koa kob koe kok kol koo kot kta ktb kte ktk ktl kto ktt la- laa lab lae lak lal lao lat lba lbb lbe lbk lbl lbo lbt lea leb lee lek lel leo let lka lkb lkl lkt lla llb lle llk lll llo llt loa lob loe lok lol loo lot lta ltb lte ltk ltl lto ltt oaa oab oae oak oal oao oat ob- oba obb obe obk obl obo obt oea oeb oee oel oeo oet oka okb oke okk okl oko ola olb ole olk oll olo olt oo- ooa oob ook ool ooo oot ot- ota otb ote otk otl oto ott taa tab tae tak tal tao tat tba tbb tbe tbk tbl tbo tbt te- tea teb tee tek tel teo tet tka tkb tke tkk tkl tko tkt tla tle tlk tll tlo tlt to- toa tob toe tok tol too tot tta ttb tte ttk ttl tto ttt