#include <bits/stdc++.h>

using namespace std;

typedef long long LL;
typedef pair<long long,long long> PLL;

#define int long long
#define all(v) v.begin(),v.end()
#define faster {ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);}  

const LL mod = 1e9 + 7;
const int N = 2e5 + 10;
const LL inf = 1e9;

void solve(int test){
    int n; cin>>n;
    map<int, PLL> mp;
    LL ans = 0, x = 0; mp[0] = {1, 1};
    for(int i = 1; i <= n; i++){
        int u; cin>>u; x ^= u;
        auto [l, sum] = mp[x];
        ans += (1LL * l * i - sum); 
        mp[x].first++, mp[x].second += (i + 1);
    }
    cout<<ans<<'\n';
}

signed main(){
    faster
    int t = 1; 
    cin>>t;
    for(int i = 1; i <= t; i++){
        solve(i);
    }
    return 0;
}