-al -ol a-a aaa aaf aak aal aan aao af- afa aff afk afl afn afo aka akk akl akn ako al- ala alf alk all aln alo an- ana anf ank anl ann ano aoa aof aok aol aon aoo faa faf fak fal fan fao ffa fff ffk ffl ffn ffo fka fkf fkk fkl fla flf fll fln flo fna fnf fnk fnl fnn foa fof fok fol fon foo ka- kaa kaf kak kal kan kao kfa kff kfo kkk kkl kkn kl- kla klf klo kn- kna knf knk knl knn kno koa kof kok kol kon koo la- laa laf lak lal lan lao lfa lff lfk lfl lfn lfo lka lkl lla llf llk lll lln llo lna lnk lnl lnn lno loa lof lok lol lon loo naa naf nak nal nan nao nfa nff nfk nfl nfn nfo nka nkf nkk nkn nko nla nlf nlk nll nln nlo nna nnf nnk nnl nnn nno no- noa nof nok nol non noo oaa oaf oak oal oan oao of- ofa off ofl ofn ofo oka okk okl oko ola olf olk oll oln olo on- ona onf onk onl onn ono oo- ooa oof ook ool oon ooo