#include <iostream>
#include <map>
#include <string>
#include <sstream>
#include <vector>
#include <algorithm>

using namespace std;

int Operation(map<string,int>& number, string a, string b, char op) {

    switch(op) {

        case '+':
            return number[a] + number[b];
            break;
        case '-':
            return number[a] - number[b];
            break;
        case '*':
            return number[a] * number[b];
            break;
        default:
            return -1;
            break;
    }
};

int main() {

    map<string, int> number;
    map<int,string> answer;
    vector<string> output;

    number["zero"] = 0;
    number["one"] = 1;
    number["two"] = 2;
    number["three"] = 3;
    number["four"] = 4;
    number["five"] = 5;
    number["six"] = 6;
    number["seven"] = 7;
    number["eight"] = 8;
    number["nine"] = 9;
    number["ten"] = 10;

    answer[0] = "zero";
    answer[1] = "one";
    answer[2] = "two";
    answer[3] = "three";
    answer[4] = "four";
    answer[5] = "five";
    answer[6] = "six";
    answer[7] = "seven";
    answer[8] = "eight";
    answer[9] = "nine";
    answer[10] = "ten";

    int n;
    cin >> n;
    cin.ignore(1);

    for(int i=0; i<n; ++i) {
        string s;
        getline(cin,s);
        string a,b,c;
        char op;
        stringstream line(s);
        line >> a;
        line >> op;
        line >> b;
        line >> c;
        line >> c;
        int ret = Operation(number,a,b,op);     
        if(ret < 0 || ret > 10) {
            output.push_back("NO");
            continue;
        }
        string temp = answer[ret];
        sort(temp.begin(),temp.end());
        sort(c.begin(),c.end());
        if(temp.compare(c) == 0)
            output.push_back("YES");
        else
            output.push_back("NO");     
    }

    for(int i=0; i<n; ++i) {
        cout << output[i] << endl;
    }
}