import java.util.Arrays;
import java.util.Scanner;

public class Main {
    // 필요한 배열
    static int[] number = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 , 10};
    static String[] charNumber = new String[] { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight",
            "nine", "ten" };

    static boolean check(int anum, String b) {
        String a = charNumber[anum];
        if (a.length() != b.length())
            return false;

        String[] aArray = a.split("");
        String[] bArray = b.split("");

        Arrays.sort(aArray);
        Arrays.sort(bArray);

        int count = 0;

        for (int i = 0; i < aArray.length; i++) {
            if (aArray[i].equals(bArray[i]))
                count++;
        }

        if (count == aArray.length)
            return true;
        else
            return false;
    }

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int times = scan.nextInt();
        scan.nextLine();
        for (int t = 0; t < times; t++) {
            String first = scan.next();
            String op = scan.next();
            String second = scan.next();
            scan.next(); // = 을 제거해 주기 위해서!
            String result = scan.next();
            scan.nextLine();

            int count = 0;

            for (int i = 0; i < 11; i++) {
                if (first.equals(charNumber[i]))
                    count = i;
            }

            int firstnum = number[count];

            for (int i = 0; i < 11; i++) {
                if (second.equals(charNumber[i]))
                    count = i;
            }

            int secondnum = number[count];

            for (int i = 0; i < 11; i++) {
                if (result.equals(charNumber[i]))
                    count = i;
            }

            int resultnum = number[count];

            int cal = 0;

            switch (op) {
            case "+":
                cal = firstnum + secondnum;
                break;
            case "-":
                cal = firstnum - secondnum;
                break;
            case "*":
                cal = firstnum * secondnum;
                break;
            default:
                System.out.println("Fucking Error");
                break;
            }

            if (cal < 0 || cal > 10)
                System.out.println("No");
            else {
                if (cal == resultnum)
                    System.out.println("Yes");

                else {
                    if (check(cal, result))
                        System.out.println("Yes");
                    else
                        System.out.println("No");
                }
            }
        }
    }

}