kirk kiro kirr kkcd kkci kkck kkco kkcr kkdc kkdd kkdg kkdo kked kkeg kkfg kkfi kkfr kkgo kkgr kkic kkid kkik kkkk kkoo kkor kkrc kkre kkrf kkrk kkro kkrr kocd kocf koci kock kode kodi kodk kodo koed koei kofc kofe koff kofg kofi kofk kofo kogd koge kogg kogi kogo koii koir kokc koke kokf koki kokk koko kokr kooc koog kooi kook kooo koor korc kord kore korf korg kori kork koro korr krcc krcd krce krcg krci krco krdc krdd krde krdg krdo krdr krec kred kree kref krei krek kreo krfc krfd krfe krff krfg krfo krgi krid krik krio krkc krkd krke krki krkk krko krkr kroc krod kroe krof krog kroi krok kroo kror krrc krre krrf krrg krri krrk krro krrr o-eo occc occi oce oced ocee ocef ocke ocre ocro ocrr odci oddd oddi oded odei odeo oder odic odie odio odir odoo odor oec- oecc oedo oeec oeid oere ofcr ofdr ofek ofer off- offc offe offo offr ofgo ofid ofik ofor ofre ogdc ogee oger ogfr ogge oggi ogod ogog ogoi ogre ogri ogro oici oick oido oier oigo oiii oike oiko oire oked oker okgo okic okie okir okko okok okor okre okro oocr oodi ooer ooff ooid oooo oord oore orce orci orco orde ordo ore- orec ored oreg orek oreo orer orfe orff orfi orge orgo ori- oric orid orie orif orig orio orke orko oro- oroe orof orok oror orri orro rccc rcdc rcde rcfc rcgc rcic rcid rcrd rcrg rder rdio rdoc recc recd rece reci reck recr redc redd rede redi redo redr reed reef reek refd refe reff refg refi refr regd rege regi rego regr reid reif reii reik reir reke reki reko reod reof reog rerd rere rerg reri rero rfdi rfef rffc rfic rfid ricc rice rick rico ridc ridd ride ridi rido ried rief riek rier rife riff rige rigg rigi rigo riif rike riki rikk rire riri rkkf rocc roce rock roco rodd rode rodi rodo roed roeg roer rofc rofe roff rofo roge rogg rogi rogo roid roif roig roik roio roir roke roki rokk roko rokr rood roof roog rooi rook roor rorc rore rori rork roro rred rrfc rrif rrrr