-ana a-ii aaaa aaab aaai aaan aaap aaar aaba aabb aabi aabp aaib aaii aain aana aani aanp aapa aapi aara aari aarp abaa abab abai aban abap abar abb- abba abbb abbi abbr abia abib abin abir abpa abpi abpn abpp abpr abra abri aiai aian aiba aibn aiia aiib aiin aiir aina aini aipa aipi aira airi airp ana- anaa anab anai anan anap anar anba anbb anbi ania anib anin anip anir anna annb anni anp- anpa anpi anpp anpr anri apai apan apap apar apba apbr api- apia apin apip apna apni appa appr apra apri aprn arab arai aran arap arar arba arbi aria arib arii arin arip arna arni arpa arpi arr- arra arri arrr ba-i baaa baan baar baba babb babi babr baia baib bain bair bana bani bann banp banr bapa bapi bapp bar- bara barb bari barn barr bbbb bbin bbpr bian biap biar biba bibb bibi biin bin- bina bini binn bipa bipp bira birb biri birn birr bnai bnib bnin bnpp bnrr bpai brab brai bran bria brin brna brrr iaaa iaai iaap iaba iaia iain iana iapa iapp iara iban ibar ibia ibra ibri iiii iipa iira inab inai inan inap inar inba inia inna inni innr inp- inpa inpi inpp inra inri ipan ipba ipin ipna ippa ippr ipri irai iran irap irar irbp iri- iria irin irip irna irpa irra irri n-ii naaa naab naai naan naar naba nabi naia naib nain naip nair nan- nana nanb nani nann nanp napa napb napi napp nara nari narn narp narr nbaa nbap nbar nbia nbpa nbpp niab nian nibi niia niip niir nina nini nipa nipr nira nnnn nnpi nnpr npap npin nppa npra npri nrab nrap nrna nrpn paan paap paar paba paia paib pain paip pair pan- pana pani pann papa papb papi papp papr par- para pari parn parp parr pban pbar pbpa piai pian pibb pibi piia piip pina pini pinn pinp pipa pipi pipp pira piri pirn pirr pnar pnin pnpp pnra ppan ppap ppar ppib pppa pppn pppp prai pran prar pri- pria prii prin prna prnp prri raab raan raba rabb rabi raia raii rain raip rair rana rani rann rapa rapi rapp rara rarb rari rbbb rbbr riaa riab riai rian rib- riba riia riin rina rinn ripa ripi ripp ripr riri rnai rnbr rnin rpii rppn rrna rrrr