RAB RAC RAD RAG RAI RAL RAM RAN RAP RAQ RAS RAT RAV-0 RAV-1 RAY REB REC RED REF REG REM REN REO REP RES RET REV REY REZ RIA RIC RID RIG RIL RIM RIN RIO RIS RIV-0 RIV-1 RIV-2 ROB ROC ROD ROG ROH ROI ROJ ROL ROM RON ROQ ROS ROU ROY ROZ RUI RUM
