-ana aaaa aaan aaap aana aanp aaon aaoo aapa aapo ana- anaa anan anao anap anaz anna anno ano- anoa anon anp- anpa anpp anza aono aopo apan apao apap apna apno apo- apon apoo apop appa aza- azan azap azaz azna azo- azon azoo azza azzo naaa naan nan- nana nann nano nanp napa napo napp naza nazo nazz nnnn noaa noap non- nona nonn nono noo- noon nooo noop npap nppa nzpp onan onna onno onon onoz onza onzo ooaa oona oooo opan opap opo- opon oppa oppo ozan ozna ozon paan paap paaz pan- pana pann pano paon papa papp paza pazo pnon pnpo pnpp poan pona pono ponp poon poop pop- popa popo popp pozo ppan ppap ppoa pppa pppn pppo pppp zaan zana zann zano zapp zaza znap zoan zon- zona zoo- zoon zoop zopa zoza zozo zzzz