-ana aaaa aaab aaan aaar aaba aabb aana aaon aaoo aara aaro abaa abab aban abar abb- abba abbb abbo abbr aboa abob abon aboo abor abra abro abza ana- anaa anab anan anao anar anaz anba anbb anbo anna annb anno ano- anoa anon anor anza aoba aonb aono aora aorb aorn arab aran arar arba arna arno aroa arob aron aroo aror aroz arr- arra arro arrr arza arzo aza- azab azan azar azaz azna azo- azon azoo azor azra azza azzo baaa baan baar baaz baba babb babo babr bana bann bano banr banz baon bar- bara barb barn baro barr barz baza bazo bbbb bnor bnrr boab boan boar boaz boba bobb bobo bona bonn bono boob boon boor booz bor- bora born boro borr borz boza bozo brab bran brao braz brna brno broa brob bron broo bror broz brrr brza bzzz naaa naab naan naar naba nabo nan- nana nanb nann nano naor nara narn naro narr narz naza nazo nazz nbaa nbar nbbo nnnn noaa noba nobo non- nona nonn nono noo- noob noon nooo noor nor- nora norb norn noro norr nrab nrna nron nzar nzra nzrb oara oban obba obbo obon obor obra obro onab onan onar onna onno onon onor onoz onra onza onzo ooaa ooba oona oooo oora orab oran orao orar orba orbb orbo orna orno oro- oron oror oroz orra orro orzo ozan ozar ozna ozon raab raan raaz raba rabb rabo rana rann rano ranz raob rara rarb raro rarz raza razo razr razz rbbb rbbr rnbr roab roan roar rob- roba robb robo rona rono roob roon roor rooz rora roro roza rozz rrna rrrr rzab z-ro zaan zaar zaba zabo zabr zana zann zano zara zarb zaro zarr zaza zbar zoan zoar zobo zon- zona zoo- zoon zora zorb zorn zoro zoza zozo zzzz