-vac a-ak a-ok aaaa aaac aaap aaas aaav aaca aacc aack aaco aacp aacs aacv aaka aaoo aapa aapc aapo aaps aasa aasc aass aava acaa acac acap acas acca accc acco accp accs acks acoa acop acos acpa acps acsa acsc acss acvs acvv akaa akao akap akas akca akka akko akok akos akpo aksa aoca aocs aokp aoks aopo aosp aoss apac apak apao apap apas apca apcc apco apcs apo- apoc apoo apop apos appa appc apps apsa apso apss apsv asaa asac asak asao asap asas asc- asca ascc asco ascp aska asko asks asoc asok asop asos aspa aspc aspo asps assa assc assk asso assp asss asva asvs avao avas avcc avco avos avva avvo caaa caac caap caas cac- caca cacc cack caco caka caos capa capc capo capp caps casa casc cask caso casp cass cava cavo cavs ccaa ccac ccap ccas ccca cccc cccp cccs cccv ccoc ccpa ccpp ccps ccsa ccsp ccss ccvo ccvs ckac ckck ckco ckcs ckcv ckoa ckoc ckoo ckos ckpc cksa ckso ckvo coak coas coca cock coco cocp cok- coka coko cook coop coos copa copo copp cops cosa cosc coso cosp coss cova covo cpaa cpac cpap cpas cpca cpcs cpos cppa cpps cpsa cpsc cpsk cpso cpvc csaa csac csak csao csas csav cscc csco cscs cska csks csos cspa cspc csps cssa cvac cvas cvca cvcc cvss k-os kaaa kaak kaap kaas kacc kaco kacp kacs kacv kaka kakc kakk kako kaks kaoa kaoc kaok kaos kap- kapa kapc kapo kapp kaps kas- kasa kasc kask kaso kasp kass kava kavo kavp kavs kavv kcaa kcac kcap kcas kcav kcca kccc kcck kccv kckc kckk kcko kckv kcos kcpa kcpc kcpo kcps kcsa kcsc kcsp kcss kcvk kcvo kcvp kcvs kcvv kkaa kkac kkap kkck kkco kkcs kkkk kkoa kkoo kkov kkpc kkpk kkps kksa kksp kkss kkvv koac koak koap koas koca kock kocp kocs koka kokc kokk koko kokp koks kooc kook kooo koop koos koov kopa kopp kops kos- kosa kosc koso kosp koss kova kovc kovk kovo kpac kpak kpao kpas kpcc kpcs kpcv kpkk kpoa kpoc kpok kpoo kpop kppc kppk kppo kppp kppv kpsc kpso kpsp kpvc kpvs ksac ksak ksas ksav ksca ksck ksco kscs kscv kska kskk ksko ksks ksoc ksok ksoo ksop ksos kspa kspc kspk kspo ksps kssa ksso ksss ksva ksvc ksvp kvak kvas kvcc kvck kvco kvcs kvcv kvoa kvoc kvok kvoo kvop kvov kvps kvsa kvsc kvso kvsp kvss kvsv kvvp kvvs kvvv oaks oaps oasc oass oavs ocac ocak ocap ocas occa occc ocks ocos ocpa ocpp ocsa okak okap okas okka okko okok okpo oksa okso ooaa ooak oooo ooos oops oosa opap opca opo- opos oppa oppo opps opsa osak osap osas osca oscc osco osoo osos osov ossa osso ovcs ovo- ovoo ovpp paak paap paas paca pack paco pacs paka pako paks paoc paos papa papp paps pasa pasc pask paso pasp pass pava pavo pavs pcaa pcap pcas pcca pccc pccs pcks pcoa pcos pcpp pcps pcsa pcso pkcs poak poas poca pock poco pocs poka poko pook poop poos pop- popa popc popo popp pops posa posk poso poss povo povs ppac ppap ppcc ppcs ppoa ppos pppa pppo pppp ppps ppss psac psap psas psav psca psco psoa psoc psos psov pspp psps pssa pssc psso pvco pvcs pvpa pvsa s-os sa-c saac saak saap saas saca sacc sack saco sacs saka sakk sako saks saos sapa sapo sapp saps sasa sasc sask saso sass sava savo savs scaa scac scak scap scas sccc sccp sccs sck- scok scoo scop scpa scpo scps scsa scsc scso scvp skac skap skop skov skpc skpo skss soak soap soas soca sock soco socs soka sokk soko sook soop soos sopa sopo sopp sops sosa soso soss sosv sova sovo sovs sp-a spac spak spap spas spca spcc spco spcs spoc spok spoo spop spos spps spsa spso spsp spss spva ssaa ssac ssao ssap ssas ssca sscc sscp sscs ssoc ssop sspa sspc sspo ssps sssa sssc ssss ssvp svcc svcs svsc vaas vaca vack vaco vacs vaka vapa vas- vasa vaso vasp vass vava vavs voca voka voks vooc vosa voso voss vovk vsop vssc vvvv