if (g is "NOSIG" ) {
		rename(g,nosig);
		group g : dump; non_alpha na;
		alias nosigPresent=one;
}
if (! nosigPresent) {

		if (g is "BECMG" ) {
				alias presentTrend3=one;
				rename(g,changeIndicatorCodedTrend3);
				constant changeIndicatorTrend3="BECOMING";
				group g : dump; non_alpha na;
		}
		if (!defined(changeIndicatorTrend3) && g is "TEMPO" ) {
				alias presentTrend3=one;
				rename(g,changeIndicatorCodedTrend3);
				group g : dump; non_alpha na;
				constant changeIndicatorTrend3="TEMPORARY_FLUCTUATIONS";
		}
		if (defined(changeIndicatorTrend3)) {
				if (substr(g,0,2) is "AT" && length(g)==6 ) {
						rename(g,atTrend3);
						group g : dump; non_alpha na;
						beginHourTrend3=to_string(atTrend3,2,2);
						beginMinuteTrend3=to_string(atTrend3,4,2);
				}
				if (! defined(beginHourTrend3) && substr(g,0,2) is "FM" && length(g)==6) {
						rename(g,fromTrend3);
						group g : dump; non_alpha na;
						beginHourTrend3=to_string(fromTrend3,2,2);
						beginMinuteTrend3=to_string(fromTrend3,4,2);
				}
				if (! defined(beginHourTrend3) && substr(g,0,2) is "TL" && length(g)==6) {
						rename(g,untilTrend3);
						group g : dump; non_alpha na;
						endHourTrend3=to_string(untilTrend3,2,2) ;
						endMinuteTrend3=to_string(untilTrend3,4,2);
				}
				include "metar/wind_Trend3.def";

				include "metar/horizontalVisibility_Trend3.def";

				if ( ! isCavokTrend3) {
						include "metar/present_weather_Trend3.def";
						include "metar/clouds_Trend3.def";
				}
		} else {
				if (substr(g,0,2) is "FM") {
						alias presentTrend3=one;
						rename(g,fromTrend3);
						constant changeIndicatorTrend3="BECOMING";
						group g : dump; non_alpha na;
						beginHourTrend3=to_string(fromTrend3,2,2);
						beginMinuteTrend3=to_string(fromTrend3,4,2);
						include "metar/wind_Trend3.def";

						include "metar/horizontalVisibility_Trend3.def";

						if ( ! isCavokTrend3) {
								include "metar/present_weather_Trend3.def";
								include "metar/clouds_Trend3.def";
						}
				}
		}

		if (defined(fromTrend3) && !defined(untilTrend3)) {
				constant endHourTrend3="??";
				constant endMinuteTrend3="??";
				constant endDayTrend3="??";
				constant endMonthTrend3="??";
				constant endYearTrend3="??";
		}
		if (defined(untilTrend3) && !defined(fromTrend3)) {
				alias beginHourTrend3=hour;
				alias beginMinuteTrend3=minute;
				alias beginMonthTrend3=month;
				alias beginYearTrend3=year;
				alias beginDayTrend3=year;
		}



}


