-ose cccc cccs ccee ccoc ccrc ccre ccrs ccss cec- cece ceco cecs ceec cees ceke ceor ceos cer- cerc cere cero cers cesc cese cesr cess ckck ckco ckcs cker ckoc ckoo ckor ckos ckrc ckso coce cock coco coes cok- coke coko cook coos cor- corc core cork coro corr cors cosc cose coso coss crcc crce crcr cre- crec cree creo cres crkc croc croe crok croo cror crss cscc csce csco cscr cscs csec csee cser csks csor csos csrc csrs csse cssr eccc ecce ecco eces ecko ecks eco- ecos ecrc ecrr ecsc ecse ecss eecs eeee eees eeke eeks eeoc eerc eero eers eese eesk ekco ekek eker ekes ekos eoes eore ercc erce erec erer eres erke erks eroc eroe eroo eros errc erre erro errs erse erso esce esco escr escs esee esek eseo eser eses eske esko esks eso- esok esos esse esso k-os kccc kcck kccr kcec kcee kceo kckc kckk kcko kckr kcoe kcor kcos kcrc kcro kcrr kcrs kcsc kcse kcsr kcss keck keco kecr keek keer kees kekc keke keko keks keok keos ker- kerc kere kerk kero kerr kers kesc kesk keso kesr kess kkck kkco kkcr kkcs kkkk kkoo kkor kkrc kkre kkrk kkro kkrr kkrs kkse kksr kkss kock kocs koes kokc koke kokk koko kokr koks kooc kook kooo koor koos korc kore kork koro korr kors kos- kosc kose koso kosr koss krcc krce krco krcs krec kree krek kreo kres krkc krke krkk krko krkr krks kroc kroe krok kroo kror kros krrc krre krrk krro krrr krrs krsc krse krsk krsr krss ksce ksck ksco kscr kscs ksec ksee ksek kseo kser kske kskk ksko kskr ksks ksoc ksok ksoo ksor ksos ksro ksrr ksrs ksse ksso kssr ksss o-eo occc oce ocee ocke ocks ocos ocre ocro ocrr ocrs oec- oecc oeec oere oers oese oker okes okko okok okor okre okro okso oocr ooer ooes oooo ooos oore oose orce orco orcs ore- orec orek oreo orer ores orke orko oro- oroe orok oror oros orro orrs orse orsk orso oscc osce osco osec osee osek oser oses osoo osor osos osro osse osso rccc rccs rcos rcsc rcss recc rece reck recr recs reek rees reke reko reks reos rere rero rers rese reso ress rkos rkss rocc roce rock roco rocs roer roes roke rokk roko rokr roks rook roor roos rorc rore rork roro rosc rose roso ross rrrr rscc rscs rsee rsos rsre s-os sccc scce sccs scec scee scer sck- scok scoo scor scr- scrc scre scrs scsc scso scsr se-c se-e se-k se-o se-s sec- secc sece seck seco secr secs seec seek seer sees seke sekk seko seoc seok serc sere serk sero serr sers sesc sese seso sess skee skeo sker skes skoe skor skss soce sock soco socr socs soec soeo soes soke sokk soko sook soor soos sore soro sorr sors sose soso soss srcc srec sreo sres sros sscc ssce sscs ssec ssee sses ssoc ssrc ssrs sssc ssss