rble rcbc rcbo rccb rccc rcic rcle rcnl rcnr rcon rebb rebe rebo recc rece reci recr reeb reel reen reii reil rein reir relb rele rell relo rene reni renn reno reol rere reri rero rib- ribe ribo ricc rice rico riel rien rier riin rile rill rilo rine rinn rino riol rion rire riri rlee rlin rnbr rnco rnie rnin rnli rob- robb robe robi robo rocc roce roco roel roen roer roil roin roio roir role roll rolo ronc rone roni rono roob rooi rool roon roor rorc rore rori roro rrle rrrr