-ana a-un aaaa aaab aaan aaar aaba aabb aana aara aaru abaa abab aban abar abau abb- abba abbb abbr abnu abra abua abun ana- anaa anab anan anar anau anba anbb anbu anna annb anua anub anun aqan aqar aqra aqu- aqua arab aran araq arar arau arba arna arq- arqa arr- arra arrr arru arua arub arun aruq auaa auna aur- aura baaa baan baar baba babb babr babu bana bann banq banr banu baqa bar- bara barb barn barq barr baru bau- baur bbau bbbb bbbq bnrr brab bran brau brna brrr brun buar buba bubb bubq bubu buna bunb bunn bunu buqa bur- bura burb burn burr buru naaa naab naan naar naba nabq nabu nan- nana nanb nann nanu naqa nara narn narr naru naur nbaa nbar nnnn nrab nrbq nrna nuan nuba nuna nunn nura nurn nurr nuru qana qara qarn qaru qban qqqq quaa quab quan quar quba qunb qunu quu- raab raan raba rabb rabu rana rann rara rarb raua raub raun rbbb rbbr rnbr rrna rrrr rrun ruan ruba rubb rubu runa runn rura ruru ruun uaru uaua ubar ubba ubra unaa unan unar unau unna unra uqar uran urau urba urna urra urun uruq urur uuuu