-ana a-un aaaa aaab aaan aaap aaar aaba aabb aabp aana aanp aapa aara aarp aaru aaup abaa abab aban abap abar abau abb- abba abbb abbr abnu abpa abpn abpp abpr abra abua abun ana- anaa anab anan anap anar anau anba anbb anbu anna annb anp- anpa anpp anpr anpu anua anub anun anup apan apap apar apba apbr apna appa appr appu apra aprn apua apup arab aran arap arar arau arba arna arpa arpu arr- arra arrr arru arua arub arun arup auaa auna aur- aura baaa baan baar baba babb babr babu bana bann banp banr banu bapa bapp bapu bar- bara barb barn barr baru bau- baur bbau bbbb bbpr bnpp bnrr brab bran brau brna brrr brun brup buar buba bubb bubu buna bunb bunn bunu bupa bur- bura burb burn burp burr buru n-up naaa naab naan naar naba nabu nan- nana nanb nann nanp nanu napa napb napp napu nara narn narp narr naru naur nbaa nbap nbar nbpa nbpp nnnn nnpr npap nppa npra nrab nrap nrna nrpn nuan nuba nuna nunn nura nurn nurp nurr nuru paan paap paar paba pabu pan- pana pann panu papa papb papp papr par- para parn parp parr paru paua paun paup paur pban pbar pbpa pnar pnau pnpp pnra pnup ppan ppap ppar pppa pppn pppp ppru ppur pran prar prau prna prnp pruu puan puar pubu puna punu pupa pupu pur- pura purb purp purr puru raab raan raba rabb rabu rana rann rapa rapp rara rarb raua raub raun raup rbbb rbbr rnbr rppn rrna rrrr rrun ruan ruba rubb rubp rubu runa runn rupa rupp rura rurp ruru ruun u-rp uaru uaua ubar ubba ubra unaa unan unar unau unna unpa unra upar upnp uppa uppp uppu upra upup uran urap urau urba urna urra urun urup urur uuuu