-al -ly -ol a-a a-b aaa aab aaf aal aao aay ab- aba abb abf abl abo aby af- afa afb aff afl afo afy al- ala alb alf all alo aly aoa aob aof aol aoo ay- aya ayf ayl ayo baa bab baf bal bao bay bba bbb bbf bbl bbo bby bfa bfb bff bfl bfo bfy bla blb blf bll blo bly boa bob bof bol boo boy by- bya byf byl byo faa fab faf fal fao fay fba fbb fbf fbl fbo ffa fff ffl ffo ffy fla flb flf fll flo fly foa fob fof fol foo foy fy- fya fyb fyo la- laa lab laf lal lao lay lba lbb lbf lbl lbo lfa lfb lff lfl lfo lla llb llf lll llo lly loa lob lof lol loo loy lya lyf lyl lyo oaa oab oaf oal oao ob- oba obb obf obl obo oby of- ofa ofb off ofl ofo ola olb olf oll olo oly oo- ooa oob oof ool ooo oya oyl oyo yaa yab yaf yal yao yay ybf ybl yby yfa yff yll yly yob yof yol yoo yoy yyb yyf yyy