#include <stdio.h>
#include <string.h>

void count(char str[], int count[]);

void count(char str[], int count[])
{
    int i, j;
    char alp = 'a';
    for(i=0;i<26;i++)
    {
        for(j=0;j<11;j++)   if(str[j] == alp)   count[i]++;
        alp++;
    }
}

int main()
{
    int i, j, size;
    int num_a, num_b, num_ans;
    char num[11][6] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"};
    char *p, op, str_a[6], str_b[6], str_out[11], str_ans[11];

    scanf("%d", &size);
    for(i=0;i<size;i++)
    {
        int count_out[26] = {0}, count_ans[26] = {0};

        scanf("%s %c %s %*c %s", str_a, &op, str_b, str_out);

        for(j=0;j<11;j++)
        {
            if(!strcmp(str_a, num[j]))  num_a = j;
            if(!strcmp(str_b, num[j]))  num_b = j;
        }

        while((p = strchr(str_out, '\n')) != NULL)  *p = '\0';
        switch(op)
        {
            case '+':
                num_ans = num_a + num_b;
                break;

            case '-':
                num_ans = num_a - num_b;
                break;

            case '*':
                num_ans = num_a * num_b;
                break;
        }

        for(j=0;j<11;j++)
        {
            if(j == num_ans)    strcpy(str_ans, num[j]);
        }

        count(str_out, count_out);

        count(str_ans, count_ans);

        for(j=0;j<26;j++)
        {
            if(count_out[j] == count_ans[j])
            {

                if(j == 25) printf("Yes\n");
                continue;
            }
            else
            {
                printf("No\n");
                break;
            }
        }
    }
}