-ana a-wa aaaa aaab aaan aaar aaba aabb aabw aana aaon aaoo aaow aara aaro aaww abaa abab aban abar abaw abb- abba abbb abbo abbr aboa abob abon aboo abor abow abra abro abwa abwr ana- anaa anab anan anao anar anba anbb anbo anna annb anno ano- anoa anon anor anwr aoba aonb aono aora aorb aorn arab aran arar araw arba arna arno aroa arob aron aroo aror arow arr- arra arro arrr arwa awan awar awon awoo awow awro awwa baaa baan baar baba babb babo babr bana bann bano banr baon bar- bara barb barn baro barr baw- bawn bbbb bbwr bnor bnrr boab boan boar boba bobb bobo bobw bona bonn bono boob boon boor boow bor- bora born boro borr borw bowa bown bowr brab bran brao braw brna brno broa brob bron broo bror brow brrr bwaa bwan naaa naab naan naar naba nabo nan- nana nanb nann nano naor naow nara narn naro narr narw nawa nawo nbaa nbar nbbo nnnn noaa noba nobo non- nona nonn nono nonw noo- noob noon nooo noor nor- nora norb norn noro norr norw nowa nown nrab nrna nron nwbn nwbw oara oban obba obbo obon obor obra obro onab onan onar onna onno onon onor onra ooaa ooba oona oooo oora orab oran orao orar orba orbb orbo orna orno oro- oron oror orra orro orwa orwo owar owna owow owwa raab raan raba rabb rabo rana rann rano raob rara rarb raro rawa rawn rawr raww rbbb rbbr rnaw rnbr roab roan roar rob- roba robb robo rona rono ronw roob roon roor rora roro rowa rowb rown rowr roww rrna rrrr waaa waao waar waaw waba wabb wabn wabo wabr wabw wan- wana wanb wann wano wanr waob waon waoo waor waow war- wara warb warn waro warr warw wawa wawb wawo wbaa wbab wban wbar wbbb wbbn wbbo wbbr wbbw wbna wbnb wbnr wbnw wbob wbon wbor wbow wbrb wbrn wbrr wbrw wbwb wbwn wbwo wnaa wnab wnaw wnba wnbb wnbn wnbr wnbw wnnr wnnw wnob wnoo wnor wnow wnrn wnrr wnrw wnwn wnwr wnww woaa woab woan woar woba wobb wobn wobo wona wonb wonn wonw woob woon woow wora worb worn woro worr worw wowb wown wowo woww wraa wrab wran wrao wrar wraw wrba wrbb wrbn wrbo wrbw wrna wrnb wrnn wrno wrnr wrnw wroa wrob wron wroo wrow wrra wrrb wrrn wrro wrrw wrwa wrwb wrwn wrwr wwab wwba wwbb wwbn wwbr wwna wwnb wwnn wwno wwnr wwnw wwon wwor wwow wwra wwrb wwrr wwrw wwwa wwwn wwwr wwww