import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		PrintWriter pw = new PrintWriter(System.out);
		for (int z = 0; z < t; z++) {
			String[] sa = br.readLine().split(" ");
//			int n = Integer.parseInt(sa[0]);
//			int m = Integer.parseInt(sa[1]);
			List<Long> a = new ArrayList<>();
			List<Long> b = new ArrayList<>();
			Set<Long> seta = new HashSet<>();
			Set<Long> setb = new HashSet<>();
			sa = br.readLine().split(" ");
			for (int i = 0; i < sa.length; i++) {
				try {
					long ai = Long.parseLong(sa[i]);
					a.add(ai);
					seta.add(ai);
				} catch (Exception e) {
				}
			}
			sa = br.readLine().split(" ");
			for (int i = 0; i < sa.length; i++) {
				try {
					long bi = Long.parseLong(sa[i]);
					b.add(bi);
					setb.add(bi);
				} catch (Exception e) {
				}
			}
			int n = a.size();
			int m = b.size();
			for (long i : a) {
				if (!setb.contains(i)) {
					seta.remove(i);
				}
			}

			if (seta.isEmpty()) {
				if (n == 0 || m == 0) {
					pw.println("Yes");
					if (n == 0) {
						for (long i : b) {
							pw.println("Blue " + i);
						}
					} else {
						for (long i : a) {
							pw.println("Red " + i);
						}
					}
				} else {
					pw.println("No");
				}
			} else {
				pw.println("Yes");
				for (long i : a) {
					if (!seta.contains(i)) {
						pw.println("Red " + i);
					}
				}
				Long[] arr = seta.toArray(new Long[0]);
				pw.println("Red " + arr[0]);
				pw.println("Blue " + arr[0]);
				for (long i : b) {
					if (!seta.contains(i)) {
						pw.println("Blue " + i);
					}
				}
				for (int i = 1; i < arr.length; i++) {
					if (i % 2 == 0) {
						pw.println("Red " + arr[i]);
						pw.println("Blue " + arr[i]);
					} else {
						pw.println("Blue " + arr[i]);
						pw.println("Red " + arr[i]);
					}
				}
			}
		}
		pw.flush();
		br.close();

	}
}