cccc ccci cccl ccic ccii ccil cclc ccli ccoc cicc cici cico ciii ciko cili cilk cill cilo ckck ckcl ckco ckoc ckoi ckoo clic clii clik clio clok cloo cock coco coil cok- coko col- coli colk coll colo cook cool iccc icci iccl icco icll icoc iiii iiio iioi iioo ikki ikko ikoo ilic ilio ilki ill- illi illo iloc ilok iloo ioci ioii ioio ioko iolo iooi iooo k-ci k-lo kccc kcci kcck kccl kcic kcii kcil kckc kckk kckl kcko kclc kcli kclk kcll kcol kicc kick kicl kiic kiii kiik kikc kiki kikk kiko kili kilk kill kilo kioc kioi kiok kiol kioo kkci kkck kkcl kkco kkic kkik kkkk kklc kkli kkll kklo kkol kkoo klcc klci klck klcl klic klik klil klio klkc klkk klkl klko kllc kllk kloc klok klol kloo koci kock koii koil kokc koki kokk koko kolc koli kolk koll kolo kooc kooi kook kool kooo lccc lick lico liii liko lili lill lilo lio- llcc lllc llll lloc lloo locc loci lock loco loic loik loki lokk loko loli loll lolo looc look lool occc occi oclc oici oick oiii oiko okic okko oklo okok okol olcc olic olio olki olli ollo oolo oooo