-ana -ane -ene -one a-be aaaa aaab aaae aaan aaba aabb aaea aaen aana aane aaoe aaon aaoo abaa abab abae aban abb- abba abbb abbe abbo abee aben aboa abob abon aboo aean aebn aena aeon ana- anaa anab anae anan anao anba anbb anbo anee anen anna annb anne anno ano- anoa anon aoba aonb aone aono baaa baan baba babb babe babo bana bane bann bano baon bbbb bbeb bean beba bebb bebe bebo beeb been bena bene benn beno beo- beon boab boan boba bobb bobe bobo boea boee boen boeo bona bone bonn bono boob booe boon eaba eana eban ebba ebbo eben ebno eboe ebon eboo eeea eeee eena enab enan enb- enbn enea enee eneo enna enne eno- enoe enon eoan eone naaa naab naan naba nabe nabo naea nan- nana nanb nane nann nano nbaa nbbo neab nean neba nebb nebe nebn nebo neea neeb neen nena nene neno neo- neon neoo nnnn noaa noae noba nobo non- nona none nonn nono noo- noob noon nooo o-eo oban obba obbo obea oben oboe obon oen- oeno onab onan one- onea oneb onee oneo onna onne onno onon ooaa ooba oobe oona oone oooo