//Coded by Vishal Mourya
//If you use this code anywhere you need to mention my name as above 
 
/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
 
//Note : If you are running this code on codechef then replace Ideone with Codechef
class Ideone //Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
        try{
 
            //write your code here 
            Scanner sc = new Scanner(System.in);
            int t = sc.nextInt();
 
            while(t > 0){
                int n = sc.nextInt(); 
 
                int[] v = new int[n];
 
                for( int i = 0 ; i < v.length ; i++ ){
                  v[i] = sc.nextInt();  
                } 
 
                //main logic of problem
                int allXor = v[0] ^ v[1];
 
                for( int i = 2 ; i < v.length  ; i++) {
                    allXor ^= ( v[i] );
                }
 
                if( allXor % 2 == 0 ){
                    System.out.println("YES");
                } 
                else{
                  System.out.println("NO");  
                } 
                t -= 1;
            }//end of test case loop 
 
        }//end of catch block
 
        catch(Exception e){
            //your Exeception here 
        }
	}
}

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