-ana aaaa aaan aaap aaas aana aanp aaon aaoo aapa aapo aaps aasa aass ana- anaa anan anao anap anas anna anno anns ano- anoa anon anos anp- anpa anpp ansa anso ansp aono aopo aosp aoss apan apao apap apas apna apno apo- apon apoo apop apos appa apps apsa apso apss asaa asan asao asap asas asno ason asop asos aspa aspo asps assa assn asso assp asss naaa naan naas nan- nana nann nano nanp nans naos napa napo napp naps nas- nasa naso nasp nass nnnn nnos nnsa nnss noaa noap non- nona nonn nono nons noo- noon nooo noop noos nops nos- nosa noss npap npas nppa npsa npss nsaa nsna nsos nsps nssa nsso nssp nsss oaps oass onan onas onna onno onon onos onso ooaa oona oons oooo ooos oops oosa opan opap opo- opon opos oppa oppo opps opsa osan osap osas osno osoo osos ossa osso paan paap paas pan- pana pann pano pans paon paos papa papp paps pasa paso pasp pass pnas pnon pnpo pnpp poan poas pona pono ponp pons poon poop poos pop- popa popo popp pops posa posn poso poss ppan ppap ppoa ppos pppa pppn pppo pppp ppps ppss psap psas psna psoa pson psos pspp psps pssa psso s-os saan saap saas sana sann sano sans saon saos sapa sapo sapp saps sasa saso sass snap snas snns snoa snoo snop snos snpo snpp soan soap soas son- sona sono sons soon soop soos sopa sopo sopp sops sosa soso soss sp-a span spap spas spns spon spoo spop spos spps spsa spso spsp spss ssaa ssan ssao ssap ssas ssns ssop sspa sspo ssps sssa ssss