k-os kkkk kkmk kkmo kkmp kkmr kkms kkoo kkor kkpk kkps kkrk kkro kkrr kkrs kksm kksp kksr kkss kmkk kmko kmks kmmk kmmm kmmo kmmr kmms kmok kmom kmor kmpo kmpr kmro kmrr kmrs kmso kmsp kmsr kmss kokk koko kokp kokr koks komo komp komr koms kook kooo koop koor koos kopp kopr kops kork koro korr kors kos- koso kosp kosr koss kpkk kpkr kpmo kpmp kpmr kpok kpoo kpop kppk kppo kppp kppr kprk kprm kpro kprp kprr kprs kpsm kpso kpsp krkk krko krkr krks krmo krmp krmr krms krok krom kroo krop kror kros krpm krpr krps krrk krrm krro krrr krrs krsk krsr krss kskk ksko kskr ksks ksmm ksmo ksmr ksms ksok ksom ksoo ksop ksor ksos kspk kspo kspr ksps ksrm ksro ksrp ksrr ksrs kssm ksso kssr ksss mkks mksm mmmm mmms mmor mmpr mmrp moko momo moms mook moop moor moos mopp mops mork moro mors mosk moso moss mppp mpps mpro mprp mrkr mrps msmm msms msop msor mspp msrp mssm mssp mssr okko okmo okok okom okor okpo okro okso omo- omoo omor omps omro omsk ooms oooo ooos oops opms opo- opor opos oppo opps opsm orko ormo oro- orok orom oror oros orps orro orrs orsk orso osm- osmo osoo osor osos ospm osro osso pkmr pkms pmmp pmos pmpm pmpo pmrs poko pomo pomp poms pook poop poor poos pop- popo popp pops pork poro porr pors posk poso poss ppms ppos pppo pppp ppps pprm ppss pro- prom proo prop pros prps prrm prrs prso prss psos pspp pspr psps psrk psrp pssm psso rkos rkss rmrp rmsp rokk roko rokr roks romk romm romo romp roms rook room roop roor roos ropo rops rork roro roso rosp ross rpms rpos rpps rrkm rrmp rrrr rrsp rsos rspk rspo rsps s-os skop skor skpo skss smok smos smps smrk smsp smss sokk soko somm somo sook soom soop soor soos sopo sopp sops sorm soro sorr sors soso soss spkr spms spok spoo spop spor spos spps sprm spro sprs spso spsp spss sros srps srsp ssop sspo ssps ssrm ssrs sssm ssss