-al -ly -ol a-a a-b aaa aab aaf aal aan aao aay ab- aba abb abf abl abn abo aby af- afa afb aff afl afn afo afy al- ala alb alf all aln alo aly an- ana anb anf anl ann ano any aoa aob aof aol aon aoo ay- aya ayf ayl ayn ayo baa bab baf bal ban bao bay bba bbb bbf bbl bbn bbo bby bfa bfb bff bfl bfn bfo bfy bla blb blf bll bln blo bly bna bnb bnf bnl bnn bno boa bob bof bol bon boo boy by- bya byf byl byn byo faa fab faf fal fan fao fay fba fbb fbf fbl fbn fbo ffa fff ffl ffn ffo ffy fla flb flf fll fln flo fly fna fnb fnf fnl fnn foa fob fof fol fon foo foy fy- fya fyb fyn fyo la- laa lab laf lal lan lao lay lba lbb lbf lbl lbo lfa lfb lff lfl lfn lfo lla llb llf lll lln llo lly lna lnb lnl lnn lno loa lob lof lol lon loo loy lya lyf lyl lyn lyo naa nab naf nal nan nao nay nba nbb nbf nbl nbn nbo nfa nfb nff nfl nfn nfo nla nlb nlf nll nln nlo nly nna nnb nnf nnl nnn nno no- noa nob nof nol non noo noy nya nyf nyl nyn nyo nyy oaa oab oaf oal oan oao ob- oba obb obf obl obn obo oby of- ofa ofb off ofl ofn ofo ola olb olf oll oln olo oly on- ona onb onf onl onn ono ony oo- ooa oob oof ool oon ooo oya oyl oyo yaa yab yaf yal yan yao yay ybf ybl yby yfa yff yll yly yna ynn yny yob yof yol yon yoo yoy yyb yyf yyy