if (substr(g,0,1) is "R" && ( substr(g,3,1) is "/" || substr(g,3,2) is "C/" 
				|| substr(g,3,2) is "L/" || substr(g,3,2) is "R/") ) {
        rename(g,RVR3);
        group g : dump; non_alpha na;
				if (substr(RVR3,3,1) is "/") {
						runwayDesignatorRVR3=to_string(RVR3,1,2);
						if (substr(RVR3,4,1) is "P" || substr(RVR3,4,1) is "M") {
								extremeValuesRVR3=to_string(RVR3,4,1);
								RVR3_1=to_string(RVR3,5);
						} else {
								RVR3_1=to_string(RVR3,4);
						}
				} else {
						runwayDesignatorRVR3=to_string(RVR3,1,3);
						meanValueRVR3=to_string(RVR3,5,4);
						if (substr(RVR3,5,1) is "P" || substr(RVR3,5,1) is "M") {
								ExtremeValuesRVR3=to_string(RVR,5,1);
								RVR3_1=to_string(RVR3,6);
						} else {
								RVR3_1=to_string(RVR3,5);
						}
				}
				if (length(RVR3_1)==4 || length(RVR3_1)==5) {
						meanRVR3=to_string(RVR3_1,0,4);
				} else {
						if (substr(RVR3_1,4,1) is "V") {
								oneMinuteMeanMinimumRVR3=to_string(RVR3_1,0,4);
								if (substr(RVR3_1,5,1) is "P" || substr(RVR3_1,5,1) is "M") {
										ExtremeValuesInMaximumRVR3=to_string(RVR_1,5,1);
										oneMinuteMeanMaximumRVR3=to_string(RVR3_1,6,4);
								} else {
										oneMinuteMeanMaximumRVR3=to_string(RVR3_1,5,4);
								}
						} 
				}
				if (substr(RVR3,-1,1) is "U" ) { constant pastTendencyRVR3="UPWARD"; }
				if (substr(RVR3,-1,1) is "D" ) { constant pastTendencyRVR3="DOWNWARD"; }
				if (substr(RVR3,-1,1) is "N" ) { constant pastTendencyRVR3="NO_CHANGE"; }

    }