#include <iostream>
#include <fstream>
#include <map>
#include <algorithm>

using namespace std;

int main(){
    fstream file;
    file.open("output.txt");
    fclose(fopen("output.txt", "w"));

    int t;
    cin >> t;
    cin.ignore();
    cin.ignore(); //輸入完T會多輸入一個\\n
    while(t--){
        string input;
        multimap<string, string> m; //<原字串, 處理完空白+排序後的字串>

        while(getline(cin, input)){
            if(input == "")break;
            string temp = "";
            for(auto a : input){ //空白處理
                if(a != ' ')
                    temp += a;
            }
            sort(temp.begin(), temp.end());
            m.insert(make_pair(input, temp));
        }

        bool flag = false;
        for(auto a = m.begin(); a != m.end(); a++){
            for(auto b = a; b != m.end();){
                b++;
                if(b == m.end())break;
                if(a->second.length() == b->second.length()){
                    if(a->second == b->second){
                        cout << a->first << " = " << b->first << "\\n";
                    }
                }
            }
        }
        if(t)
            cout << "\\n";
    }
    return 0;
}