-ana a-ii aaaa aaab aaai aaan aaap aaba aabb aabi aabp aaib aaii aain aana aani aanp aapa aapi abaa abab abai aban abap abb- abba abbb abbi abia abib abin abpa abpi abpn abpp aiai aian aiba aibn aiia aiib aiin aina aini aipa aipi ana- anaa anab anai anan anap anba anbb anbi ania anib anin anip anna annb anni anp- anpa anpi anpp apai apan apap apba api- apia apin apip apna apni appa ba-i baaa baan baba babb babi baia baib bain bana bani bann banp bapa bapi bapp bbbb bbin bian biap biba bibb bibi biin bin- bina bini binn bipa bipp bnai bnib bnin bnpp bpai iaaa iaai iaap iaba iaia iain iana iapa iapp iban ibia iiii iipa inab inai inan inap inba inia inna inni inp- inpa inpi inpp ipan ipba ipin ipna ippa n-ii naaa naab naai naan naba nabi naia naib nain naip nan- nana nanb nani nann nanp napa napb napi napp nbaa nbap nbia nbpa nbpp niab nian nibi niia niip nina nini nipa nnnn nnpi npap npin nppa paan paap paba paia paib pain paip pan- pana pani pann papa papb papi papp pban pbpa piai pian pibb pibi piia piip pina pini pinn pinp pipa pipi pipp pnin pnpp ppan ppap ppib pppa pppn pppp