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

int compare(char *arg)
{
    char arr[11] = {0, };
    strcpy(arr, arg);
    char temp = 0;
    for(int j = 0; j < (int)strlen(arg); j++)
    {
        for(int i = 0; i < (int)strlen(arg)-1; i++)
        {
            if(arr[i+1] < arr[i])
            {
                temp = arr[i];
                arr[i] = arr[i+1];
                arr[i+1] = temp;                
            }
        }
    }
    if(strcmp(arr, "eorz")==0)
    {
        return 0;
    }
    else if(strcmp(arr, "eno")==0)
    {
        return 1;
    }
    else if(strcmp(arr, "otw")==0)
    {
        return 2;
    }
    else if(strcmp(arr, "eehrt")==0)
    {
        return 3;
    }
    else if(strcmp(arr, "foru")==0)
    {
        return 4;
    }
    else if(strcmp(arr, "efiv")==0)
    {
        return 5;
    }
    else if(strcmp(arr, "isx")==0)
    {
        return 6;
    }
    else if(strcmp(arr, "eensv")==0)
    {
        return 7;
    }
    else if(strcmp(arr, "eghit")==0)
    {
        return 8;
    }
    else if(strcmp(arr, "einn")==0)
    {
        return 9;
    }
    else if(strcmp(arr, "ent")==0)
    {
        return 10;
    }
    return 0;
}

int main()
{
    int n = 0;
    int A = 0;
    int B = 0;
    int C = 0;
    int ret[100] = {0, };
    char a[11] = {0,};
    char b[11] = {0,};
    char c[11] = {0,};
    char t1;
    char t2;
    scanf("%d", &n);
    for(int i = 0; i < n; i++)
    {
        scanf("%s %c %s %c %s", a, &t1, b, &t2, c);
        A = compare(a);
        B = compare(b);
        C = compare(c);
        if(t1 = '+')
        {
            if(A+B == C)
            {
                ret[i] = 1;
            }
            else
            {
                ret[i] = -1;
            }
        }
        else if(t1 = '-')
        {
            if(A-B == C)
            {
                ret[i] = 1;
            }
            else
            {
                ret[i] = -1;
            }
        }
        else if(t1 = '*')
        {
            if(A*B == C)
            {
                ret[i] = 1;
            }
            else
            {
                ret[i] = -1;
            }
        }
    }
    for(int i = 0; i < n; i++)
    {
        if(ret[i] == 1)
        {
            printf("Yes\n");
        }
        else
        {
            printf("No\n");
        }
    }
    return 0;
}