#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

int main(void)
{
    int testNum;
    cin>>testNum;

    string num[11] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"};
    string sort_num[11] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"};

    for(int i=0;i<11;++i)
    {
        sort(sort_num[i].begin(), sort_num[i].end());
    }

    while(testNum--)
    {
        string left_side_str, right_side_str, answer_str;
        char operation;
        char equal;

        cin>>left_side_str >> operation >> right_side_str >> equal >> answer_str;

        int left_side_num, right_side_num, answer_num;

        sort(answer_str.begin(), answer_str.end());

        for(int i=0;i<11;++i)
        {
            if(!left_side_str.compare(num[i])){
                left_side_num = i;
                break;
            }
        }

        for(int i=0;i<11;++i)
        {
            if(!right_side_str.compare(num[i])){
                right_side_num = i;
                break;
            }
        }

        for(int i=0;i<11;++i)
        {
            if(!answer_str.compare(sort_num[i])){
                answer_num = i;
                break;
            }
        }

        int correct_answer;

        if(operation == '+') correct_answer = left_side_num + right_side_num;
        else if(operation == '-') correct_answer = left_side_num - right_side_num;
        else if(operation == '*') correct_answer = left_side_num * right_side_num;

        if(correct_answer > 10 || correct_answer < 0) cout<<"No"<<endl;
        else if(correct_answer == answer_num) cout<<"Yes"<<endl;
        else cout<<"No"<<endl;
    }
}