-ana aaaa aaab aaaf aaal aaan aaba aabb aabl aafa aafb aaff aafl aala aall aalo aana aaon aaoo abaa abab abaf abal aban abb- abba abbb abbo abff abla ablo aboa abob abof abol abon aboo afaa afan afao affa affo afla afoa afol afoo alaa alal alan alao alb- alba albo alfa all- alla alll alln allo alna aloa alof alol alon aloo ana- anaa anab anal anan anao anba anbb anbl anbo anfa anfo anla anln anlo anna annb anno ano- anoa anon aoba aola aonb aono baaa baaf baal baan baba babb babo baff bafo bala balf ball balo bana bann bano baol baon bbbb bbfn bblb bffl blaa blab blan blno blob blon bloo boab boal boan boba bobb bobo bofa boff bola boll boln bolo bona bonn bono boob boof bool boon faaa faan faba fabo fafa faff fafo fala fall faln falo fana fano faon fbla ffff flab flan flao flna flnb flob flon floo foaf foal foan foba fofo fola foll folo fono foof fool foon laaa laal laan laba labo lafb laff lala lall lalo lan- lana lann lano laon llan llao llll lloa lloo loaf loan lob- loba lobb lobo lofa loff lofn lola loll lolo lona lono loob loof lool loon naaa naab naal naan naba nabf nabl nabo nafa naff nafl nafo nala nall nan- nana nanb nann nano nbaa nbaf nbbo nbfa nbfl nfaa nfff nfon nlab nnnn noaa noal noba nobo nola nolf noll nolo non- nona nonn nono noo- noob nool noon nooo oafo oall obal oban obba obbo obla obol obon ofan off- offa offo ofla ofna ofno olaf olan olba olbo olfa olla ollo olof olon onab onal onan onla onlf onna onno onon ooaa ooba ooff oola oolo oona oooo