#include <iostream>
#include <string>
using namespace std;

string yesOrNo(string word)
// precondition: 
// postcondition:
{
    string first;
    if (word.length() == 0)
    {
	return "Error";
    }
    first = word.substr(0,1);
    if (first == "y" || first == "Y")
    {
	return "Yes";
    }
    if (first == "n" || first == "N")
    {
	return "No";
    }
	return "WishyWashy";
}


int main()
{
    string response;
    cout << "enter a word in response to a yes/no question: " ;
    cin >> response;
    cout << yesOrNo(response) << endl;
    return 0;
}

/*

Sample output:

prompt> yesOrNo
enter a word in response to a yes/no question: yo
Yes

prompt> yesOrNo
enter a word in response to a yes/no question: huh
WishyWashy

prompt> yesOrNo
enter a word in response to a yes/no question: sure
WishyWashy

prompt> yesOrNo
enter a word in response to a yes/no question: negative
No

prompt> yesOrNo
enter a word in response to a yes/no question: YES
Yes

*/