A

#include <bits/stdc++.h>
using namespace std;

int main() {
    int t;
    cin>>t;
    while(t--){
        int n;
        cin >> n;
        for(int i = 0; i < n; i++){
            int x, y;
            cin >> x >> y;
            if(y < - 1) cout << "NO" << endl;
            else cout << "YES" << endl;
        }
    }
}