-ana aaaa aaan aaap aaas aaav aana aanp aaon aaoo aapa aapo aaps aasa aass aava 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 apsv asaa asan asao asap asas asno ason asop asos aspa aspo asps assa assn asso assp asss asva asvs avan avao avas avon avos avva avvo naaa naan naas nan- nana nann nano nanp nans naos napa napo napp naps nas- nasa naso nasp nass nasv nava navo navs navv nnnn nnos nnsa nnss noaa noap non- nona nonn nono nons noo- noon nooo noop noos noov nops nos- nosa noss nov- nova novo npap npas npov nppa npsa npss nsaa nsna nsos nsps nssa nsso nssp nsss nvss oaps oass oavs 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 osov ossa osso ovan ovo- ovon ovoo ovpp paan paap paas pan- pana pann pano pans paon paos papa papp paps pasa paso pasp pass pava pavo pavs pnas pnon pnpo pnpp poan poas pona pono ponp pons poon poop poos pop- popa popo popp pops posa posn poso poss povo povs ppan ppap ppoa ppos pppa pppn pppo pppp ppps ppss psap psas psav psna psoa pson psos psov pspp psps pssa psso pvpa pvsa s-os saan saap saas sana sann sano sans saon saos sapa sapo sapp saps sasa saso sass sava savo savs snap snas snav snns snoa snoo snop snos snov snpo snpp soan soap soas son- sona sono sons soon soop soos sopa sopo sopp sops sosa soso soss sosv sova sovo sovs sp-a span spap spas spns spon spoo spop spos spps spsa spso spsp spss spva ssaa ssan ssao ssap ssas ssns ssop sspa sspo ssps sssa ssss ssvp svan svns vaan vaas vana vann vano vans vapa vas- vasa vaso vasp vass vava vavs vnav vnso vona vonn vons vosa voso voss vpon vsan vsop vvvv