ored oren oreo orer ori- oric orid orie orin orio ornc orne orni orno oro- oroe oron oror orri orro rbbb rbbr rcbc rcbo rccb rccc rcdc rcde rcic rcid rcnr rcon rcrd rder rdio rdoc rebb rebe rebo recc recd rece reci recr redc redd rede redi redo redr reeb reed reen reid reii rein reir rend rene reni renn reno reod rerd rere reri rero rib- ribe ribo ricc rice rico ridc ridd ride ridi rido ried rien rier riin rind rine rinn rino rion rire riri rnbr rnco rndc rnie rnin rnod rob- robb robe robi robo rocc roce roco rodd rode rodi rodo roed roen roer roid roin roio roir ronc rond rone roni rono roob rood rooi roon roor rorc rore rori roro rred rrrr