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

int _cmp(const void * a, const void * b){
    return *(char*)a - *(char*)b;
}

int StoNum(char * string){
    switch (string[0]){
    case 'z':
        return 0;
    case 'o':
        return 1;
    case 't':
        switch (string[1]){
        case 'w':
            return 2;
        case 'h':
            return 3;
        case 'e':
            return 10;
        }
        break;
    case 'f':
        switch (string[1]){
        case 'o':
            return 4;
        case 'i':
            return 5;
        }
        break;
    case 's':
        switch (string[1]){
        case 'i':
            return 6;
        case 'e':
            return 7;
        }
        break;
    case 'e':
        return 8;
    case 'n':
        return 9;
    }
    return -1;
}

int _add(int a, int b){
    return a + b;
}
int _sub(int a, int b){
    return a - b;
}
int _mul(int a, int b){
    return a * b;
}

int cal(int a, int b, char operation){
    int(*func[4])(int a, int b) = { _mul, _add, 0, _sub};
    return func[operation - '*'](a, b);
}

int main(void){
    int N, i, a, b, c, length;
    char num_string[11][6] = { { "eorz" }, { "eno" }, { "otw" }, { "eehrt" }, { "foru" }, { "efiv" }, { "isx" }, { "eensv" }, { "eghit" }, { "einn" }, { "ent" } };
    char A[6], B[6], operation, dummy, C[11];;
    scanf("%d", &N);
    while (N--){
        for (i = 0; i < 11; i++) C[i] = 0;
        for (i = 0; i < 6; i++) A[i] = B[i] = 0;
        scanf("%s %c %s %c %s", A, &operation, B, &dummy, C);
        a = StoNum(A);
        b = StoNum(B);
        c = cal(a, b, operation);
        if ((c < 0) || (10 < c)) {
            printf("NO\n");
            continue;
        }
        qsort(C, strlen(C), sizeof(char), _cmp);
        if (!(strcmp(num_string[c], C))) printf("YES\n");
        else printf("NO\n");
    }
    return 0;
}