k-os kkkk kkoo kkor kkov kkoy kkpk kkps kkrk kkro kkrr kkrs kkrv kksp kksr kkss kkvr kkvv kkys kkyy kokk koko kokp kokr koks koky kook kooo koop koor koos koov kopp kopr kops kopy kork koro korr kors korv kos- koso kosp kosr koss kosy kovk kovo kovr koyo koyy kpkk kpkr kpky kpok kpoo kpop kpoy kppk kppo kppp kppr kppv kprk kpro kprp kprr kprs kprv kpso kpsp kpvr kpvs kpyk kpyr kpyv krkk krko krkr krks krkv krky krok kroo krop kror kros krov kroy krpr krps krrk krro krrr krrs krry krsk krsr krss krsv krsy krvk krvo krvr krvs krvv kryk kryo kryp kryy kskk ksko kskr ksks ksky ksok ksoo ksop ksor ksos kspk kspo kspr ksps ksro ksrp ksrr ksrs ksrv ksry ksso kssr ksss ksvp ksvr ksvy ksyr ksyv ksyy kvok kvoo kvop kvor kvov kvps kvro kvrp kvrr kvrv kvso kvsp kvsr kvss kvsv kvvp kvvr kvvs kvvv kykk kykr kyks kykv kyky kyok kyoo kyor kyos kyoy kyp- kypr kyps kyrk kyro kyrs kysk kysp kysr kyyk kyyo kyys kyyy okko okok okor okpo okro okso okyo ooky oooo ooos oops oory opo- opor opos oppo opps oppy opry opsy orko oro- orok oror oros oroy orps orro orrs orry orsk orso orsy orvr orvs orys osoo osor osos osov osro osso ossy osyp ovo- ovoo ovpp oyss poko poky pook poop poor poos pop- popo popp pops popy pork poro porr pors pory posk poso poss posy povo povs poyo poyr poys ppos pppo pppp ppps ppss prky pro- proo prop pros prov prps prrs prso prss prsv pryk prys psos psov pspp pspr psps psrk psrp psso psy- psys pykk pyo- pyos pypy pyr- pyrk pyro pyry pysk pyss rkos rkss rksv rokk roko rokr roks roky rook roop roor roos ropo rops ropy rork roro rory roso rosp ross rosy rovo rovs roys rpos rpps rrrr rrsp rsos rspk rspo rsps rsvp rvsp rysy s-os skop skor skov skpo skss sky- skyr skys skyy sokk soko sook soop soor soos sooy sopo sopp sops sopy soro sorr sors sory soso soss sosv sovo sovs soyo soys spkr spok spoo spop spor spos spoy spps spro sprs spry spso spsp spss spy- spyr spys sros srps srsp ssop sspo ssps ssrs ssss ssvp svor svoy sypo syro syrs syry syso syss syyk vkor voks voky voor vor- voro vors vory voso voss vovk voys vpro vsop vsrp vvvv vyos vyrk vyso vyss ykko yoko yoks yoky yook yoop yopo yopy york yoro yory yoso yoyo ysop yvor yyyy