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

int numReturn(char *alphabet, char (*s)[11]);
int calc(int n1, int n2, char op);
void strCompare(char *s1, char *s2);

int main(void)
{
    int t, i;
    char str[11][11] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"};
    int num1, num2, num3;
    char n1[11], n2[11], n3[11];
    char op1, op2;
    int result;

    scanf("%d", &t);

    for(i = 0; i < t; i++)
    {
        scanf("%s %c %s %c %s", n1, &op1, n2, &op2, n3);
        num1 = numReturn(n1, str);
        num2 = numReturn(n2, str);

        result = calc(num1, num2, op1);

        if(result > 10)
        {
            printf("No\n");
            continue;
        }

        strCompare(str[result], n3);
    }

    return 0;
}

int numReturn(char *alphabet, char (*s)[11])
{
    int i;

    for(i = 0; i < 11; i++)
    {
        if(strncmp(s[i], alphabet, strlen(alphabet)) == 0)
        {
            break;
        }
    }

    return i;
}

int calc(int n1, int n2, char op)
{
    int result;

    switch(op)
    {
        case '+' :
            result = n1 + n2;
            break;
        case '-' :
            result = n1 - n2;
            break;
        case '*' :
            result = n1 * n2;
            break;
    }

    return result;
}

void strCompare(char *s1, char *s2)
{
    int str1[26] = {0};
    int str2[26] = {0};
    int i;

    for(i = 0; i < 11; i++)
    {
        if(s1[i] == '\0' || s2[i] == '\0')
        {
            break;
        }
        if(s1[i] >= 97 && s1[i] <= 122)
        {
            str1[s1[i] - 97]++;
        }

        if(s2[i] >= 97 && s2[i] <= 122)
        {
            str2[s2[i] - 97]++;
        }
    }

    for(i = 0; i < 26; i++)
    {
        if(str1[i] != str2[i])
        {
            break;
        }
    }

    if(i == 26)
    {
        printf("Yes\n");
    }
    else
    {
        printf("No\n");
    }
}