#include <iostream>

using namespace std;

int input;

char one[100];

char oper;

char oper1;

char two[100];

char answer[100];

int transone = 0;

int transtwo = 0;

char numbers[11][10] = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine" , "ten"};

int answeris(int answer111){
    int check[11];
    int zzz = 0;
    int gogo = 0;
    for (int i = 0; i < 11; i++){
        if (numbers[answer111][i] == '\0'){
            if (answer[i] == '\0'){
                gogo = 0;
            }
            else{
                return -1100; 
                gogo = 1;
            }
        }


    }
    if (gogo == 0){
        for (int i = 0; i < 9; i++){
            check[i] = 0;
        }
        for (int i = 0; i < 11; i++){
            if (numbers[answer111][i] == '\0'){

                if (zzz == i){
                    return zzz;
                }
                else{
                    return -1100;
                }
            }
            else{
                for (int j = 0; j < 11; j++){
                    if (numbers[answer111][i] == '\0' || answer[j] == '\0'){
                        break;
                    }
                    else if (numbers[answer111][i] == answer[j] && check[j] == 0){
                        check[j] = 1;
                        zzz++;
                        break;
                    }
                }

            }
        }
    }
    return -1100;


}


int whatnumber(char a[]){
    int end = 0;
    for (int i = 0; i < 11; i++){
        int flag = 0;
        for (int j = 0; j < 11; j++){
            if (numbers[i][j] == '\0'){
                if (flag == j){
                    //cout << numbers[i] << " " << a << endl;
                    return i;
                }
            }
            else{
                if (a[j] == numbers[i][j]){
                    flag++;
                }
            }
        }
    }


    return -1;
}

int main(){

    cin >> input;

    for (int i = 1; i <= input; i++){

        cin >> one >> oper >> two >> oper1 >> answer;

        //cin >> one >> oper >> two ;

        int answer1 = 0;

        transone = whatnumber(one);

        transtwo = whatnumber(two);

        if (oper == '+'){

            answer1 = transone + transtwo;

        }

        else if (oper == '-'){

            answer1 = transone - transtwo;

        }
        else if (oper == '*'){

            answer1 = transone * transtwo;

        }

        if (answer1 > 10){

            cout << "No" << endl;

        }
        else{

            int n1 = answeris(answer1);

            if (n1 == -1100){

                cout << "No" << endl;

            }
            else{

                cout << "Yes" << endl;

            }

        }

        for (int w = 0; w < 11; w++){

            one[w] = 0;

            two[w] = 0;

            answer[w] = 0;

        }

    }

    return 0;

}