-ana -ane -ene -one aaaa aaae aaan aaap aaea aaen aaep aana aane aanp aaoe aaon aaoo aapa aapo aean aeap aena aeon ana- anaa anae anan anao anap anax anee anen anex anna anne anno ano- anoa anon anox anp- anpa anpp aone aono aopo apan apao apap apax apea apen apep apex apna apne apno apo- apoe apon apoo apop apox appa appx axan axen axo- axoa axon axxo eana eaop eapp eeea eeee eena enan enap enea enee eneo enna enne eno- enoe enon enp- enpa eoan eone epaa epee epen epon epox eppa eppo eppp epxp exa- exan exen exo- exon expn expo naaa naan naea nan- nana nane nann nano nanp napa nape napo napp nean neap neea neen neep nena nene neno neo- neon neoo neox nepa nepe nexe nexo nexx nnnn noaa noae noap non- nona none nonn nono nonx noo- noon nooo noop nope noxa npap nppa o-eo oeax oen- oeno oepa onan one- onea onee oneo onep onex onna onne onno onon ooaa oona oone oooo opan opap open opep opex opo- opon oppa oppo oxa- oxan oxea oxen oxep oxna oxo- oxon oxox oxxo paan paap paea paen paep pan- pana pane pann pano paon paox papa pape papp paxo pean peap peax peen peep pen- pena pene penn peno peon pepa pepe pepo pnea pnon pnpo pnpp poan poea pona pone pono ponp poon poop pop- popa pope popo popp ppan ppap ppen ppoa pppa pppn pppo pppp xana xano xapo xen- xena xene xenn xeno xeon xexe xnap xnee xoan xoxo xpax xxxo xxxx