ocro ocrr odbo odci oddd oddi oded odei odeo oder odic odie odio odir odoo odor oec- oecc oedo oeec oegb oeid oere ofcr ofdr ofer off- offc offe offo offr ofgo ofid ofor ofre ogb ogbe ogdc ogee oger ogfr ogge oggi ogod ogog ogoi ogre ogri ogro oici oido oier oigo oiii oire oobe oobi oocr oodi ooer ooff ooid oooo oord oore orbb orbe orbi orbo orce orci orco orde ordo ore- oreb orec ored oreg oreo orer orfe orff orfi orge orgo ori- oric orid orie orif orig orio oro- oroe orof oror orri orro rbbb rbbr rcbc rcbo rccb rccc rcdc rcde rcfc rcgc rcic rcid rcrd rcrg rder rdio rdoc rebb rebe rebo recc recd rece reci recr redc redd rede redi redo redr reeb reed reef refd refe reff refg refi refr regd rege regi rego regr reid reif reii reir reod reof reog rerd rere rerg reri rero rfdi rfef rffc rfic rfid rgbe rgbi rib- ribe ribo ricc rice rico ridc ridd ride ridi rido ried rief rier rife riff rige rigg rigi rigo riif rire riri rob- robb robe robi robo rocc roce roco rodd rode rodi rodo roed roeg roer rofc rofe roff rofo roge rogg rogi rogo roid roif roig roio roir roob rood roof roog rooi roor rorc rore rori roro rred rrfc rrif rrrr