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

int cvtNum(char* str)
{
    if(!strcmp(str, "one"))
        return 1;
    else if(!strcmp(str, "two"))
        return 2;
    else if(!strcmp(str, "three"))
        return 3;
    else if(!strcmp(str, "four"))
        return 4;
    else if(!strcmp(str, "five"))
        return 5;
    else if(!strcmp(str, "six"))
        return 6;
    else if(!strcmp(str, "seven"))
        return 7;
    else if(!strcmp(str, "eight"))
        return 8;
    else if(!strcmp(str, "nine"))
        return 9;
    else if(!strcmp(str, "zero"))
        return 0;
    else
        return -1;
}

int calc(int numA, int numB, char *op)
{
    int rval;

    if(op[0] == '+')
        rval = numA + numB;
    else if(op[0] == '-')
        rval = numA - numB;
    else if(op[0] == '*')
        rval = numA * numB;
    else
        rval = -1;

    return rval;
}

int checkAnswer(int num, char *str)
{
    int len, i, j, rval;
    char ans[10];

    memset(ans, 0x00, sizeof(char)*10);

    switch(num){
        case 0:
            strcpy(ans, "zero");
            break;
        case 1:
            strcpy(ans, "one");
            break;
        case 2:
            strcpy(ans, "two");
            break;
        case 3:
            strcpy(ans, "three");
            break;
        case 4:
            strcpy(ans, "four");
            break;
        case 5:
            strcpy(ans, "five");
            break;
        case 6:
            strcpy(ans, "six");
            break;
        case 7:
            strcpy(ans, "seven");
            break;
        case 8:
            strcpy(ans, "eight");
            break;
        case 9:
            strcpy(ans, "nine");
            break;
    }

    // compare(ans, str);

    len = strlen(ans);
    if(len != strlen(str)){
        return -1;
    }

    for(i=0; i<len; ++i){
        for(j=0; j<len; ++j){
            if(ans[i] == str[j]){
                str[j] = '\0';
                j=len;
            }
        }
        if(j==len)
            return -1;
    }


    return 0;
}

int process(void)
{
    char eq[80];
    char strA[10];
    char strB[10];
    char strC[10];
    char op[10];
    int numA;
    int numB;
    int numC;

    memset(eq, 0x00, sizeof(char)*80);

    fgets(eq, 80, stdin);

    strcpy(strA, strtok(eq, " "));
    strcpy(op, strtok(NULL, " "));
    strcpy(strB, strtok(NULL, " "));
    strcpy(strC, strtok(NULL, " = "));
    strC[strlen(strC)-1] = NULL;

    numA = cvtNum(strA);
    if(numA < 0){
        return -1;
    }
    numB = cvtNum(strB);
    if(numB < 0){
        return -1;
    }
    numC = calc(numA, numB, op);
    if(numC < 0){
        return -1;
    }

    return checkAnswer(numC, strC);

}

int main(void)
{
    int i, num;
    int rval;

    scanf("%d\n", &num);

    for(i=0; i<num; ++i){
        rval = process();
        if(rval==0)
            printf("Yes\n");
        else
            printf("No\n");
    }

    return 0;
}