#include <stdio.h>

int t;
char op, eq;

char num[11][11] = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten" };
char a[11], b[11], c[11];
int n1, n2, n3;

int strlen(const char str[])
{
    int idx = 0;

    while(str[idx] != '\0') {
        idx++;
    }

    return idx;
}

int strcmp(char str1[], char str2[])
{
    for (int i = 0 ; i < strlen(str1) ; i++)
    {
        if (str1[i] != str2[i]) {
            return 0;
        }
    }

    return 1;
}

void sort(char str[])
{
    char temp;
    int n = strlen(str);

    for (int i = 0 ; i < n ; i++)
    {
        for (int j = 0 ; j < n-i-1 ; j++)
        {
            if (str[j] > str[j+1])
            {
                temp = str[j];
                str[j] = str[j+1];
                str[j+1] = temp;
            }
        }
    }
}

int getInt(char str[])
{
    int n = 0;

    for (int i = 0 ; i < 11 ; i++)
    {
        if (strcmp(num[i], str)) {
            n = i;
            break;
        }
    }

    return n;
}

int calc(int a, int b, char op)
{
    if (op == '+') {
        return a+b;
    } else if (op == '-') {
        return a-b;
    } else {
        return a*b;
    }
}

int main()
{
    for (int i = 0 ; i < 11 ; i++) {
        sort(num[i]);
    }

    scanf("%d", &t);

    while(t--)
    {
        char* str = NULL;
        int result = 0;

        scanf("%s %c %s %c %s", a, &op, b, &eq, c);

        sort(a);
        sort(b);
        sort(c);

        n1 = getInt(a);
        n2 = getInt(b);
        n3 = getInt(c);

        result = calc(n1, n2, op);

        if (n3 == result) {
            str = "YES";
        } else {
            str ="NO";
        }

        if (result < 0 || result > 10) {
            str = "NO";
        }

        printf("%s\n", str);
    }

    return 0;
}