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import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

public class lus {
	
	public static void main(String[] args) {
		int t = R.i();

		int n, w1, w2, h1, h2;
		int minw, maxw, minh, maxh;
		boolean b;
		int c;
		while (t-- > 0) {
			minw = Integer.MAX_VALUE;
			maxw = 0;
			minh = Integer.MAX_VALUE;
			maxh = 0;
			b = false;
			
			n = R.i();
			while (n-- > 0) {
				c = 0;
				w1 = R.i();
				w2 = R.i();
				h1 = R.i();
				h2 = R.i();
				
				if (w1 < minw || w2 > maxw || h1 < minh || h2 > maxh) {
					b = false;
				}
				
				if (w1 <= minw) {
					minw = w1;
					c++;
				}
				if (w2 >= maxw) {
					maxw = w2;
					c++;
				}
				if (h1 <= minh) {
					minh = h1;
					c++;
				}
				if (h2 >= maxh) {
					maxh = h2;
					c++;
				}
				if (c == 4) {
					b = true;
				}
			}
			
			W.tn(b);
		}

		
		W.flush();
	}
	

	static class R {
		static InputStream is=new BufferedInputStream(System.in);
		static int b='\n';
		static void next(){try{b=is.read();}catch(Exception e){}}
		static void skip(){while(b=='\n'||b==' '||b=='\r'||b=='\t')next();}
		static char c(){skip();char c=(char)b;next();return c;}
		static int i(){skip();int i=0;while(b>='0'&&b<='9'){i=10*i+(b-'0');next();}return i;}
		static long l(){skip();long i=0;while(b>='0'&&b<='9'){i=10*i+(b-'0');next();}return i;}
	}
	static class W {
		static OutputStream os=new BufferedOutputStream(System.out,4096);
		static void b(int b){try{os.write(b);}catch(Exception e){}}
		static void c(char c){b(c);}
		static void cs(char c){c(c);space();}
		static void cn(char c){c(c);newLine();}
		static void i(int i){if(i>9)i(i/10);b('0'+(i%10));}
		static void is(int i){i(i);space();}
		static void in(int i){i(i);newLine();}
		static void l(long l){if(l>9)l(l/10);b('0'+(int)(l%10));}
		static void ls(int l){l(l);space();}
		static void ln(int l){l(l);newLine();}
		static void s(String s){try{os.write(s.getBytes());}catch(Exception e){}}
		static void ss(String s){s(s);space();}
		static void sn(String s){s(s);newLine();}
		static void tn(boolean b){sn(b?"TAK":"NIE");}
		static void space(){b(' ');}
		static void newLine(){b('\n');}
		static void flush(){try{os.flush();}catch(Exception e){}};
	}
	static class T {
		static List<String> s=new ArrayList<String>();
		static List<Long> t=new ArrayList<Long>();
		static void t(String n){s.add(n);t.add(System.currentTimeMillis());}
		static void err(){t.add(System.currentTimeMillis());System.err.println();for(int i=0;i<s.size();i++){System.err.println(s.get(i)+": "+(t.get(i+1)-t.get(i)));}System.err.println("TOTAL: "+(t.get(t.size() - 1)-t.get(0)));System.err.flush();}
	}

}