#include <iostream>
#include <string>

using namespace std;

///ifstream cin ("test.in");
///ofstream cout ("test.out");

string s;

int main()
{
    int t;
    cin >> t;
    for (int j=1; j<=t; j++)
    {
        s.clear();
        cin >> s;
        int r=0;
        if (s.length()==1)
        {
            cout << 0 << "\n";
            continue;
        }
        if (s[1]==s[0])
        {
            r++;
            s[1]='/';
        }
        for (int i=2; i<s.length(); i++)
        {
            if (s[i]==s[i-1] || s[i]==s[i-2])
            {
                r++;
                s[i]='/';
            }
        }
        cout << r << "\n";
    }
    return 0;
}