#include <iostream>
using namespace std;
int main()
{
int t,n,x,a[2][2],c=0;
cin>>t;
for(int i=1; i<=t; i++)
{ cin>>n>>x;
for(int ii=1; ii<=n; ii++)
{
for(int j=0; j<2; j++)
{
for(int k=0; k<2; k++)
{
cin>>a[j][k];
}
}
if( a[0][1]==a[1][0])
{
c++;
}
if(c>0)
{
cout<<"YES"<<'\n';
}
else cout<<"NO"<<'\n';
}
cout<<endl;
}
return 0;
}
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