#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,flag;
	string a,b;
	
	cin>>n;
	while(n--){
		cin>>a>>b;
		flag = 0;
		for(char c:a){
			if(b.find(c)!= string::npos){
				b.erase(b.find(c),1);
			}else{
				cout<<"No"<<endl;
				flag = 1;
				break;
			}
		}
		if(!flag){
			cout<<"Yes"<<endl;
		}
		
	}
}