using namespace std;
#include<bits/stdc++.h>
void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); cout<<fixed<<setprecision(15);_main(); return 0;}
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
typedef long long ll;
typedef long double ld;
template<class ll> inline bool chmax(ll& a, ll b) { if (a < b) { a = b; return 1; } return 0; }
template<class ll> inline bool chmin(ll& a, ll b) { if (a > b) { a = b; return 1; } return 0; }
#define rep(i, star,fini) for (int i = star; i < fini; i++)
#define ALL(x) std::begin(x), std::end(x)
#define INF ((1LL<<62)-(1LL<<31))
#define bit(x,i)(((x)>>(i))&1)
long double distance(long double xi,long double yi,long double xj,long double yj){return sqrt(1.0*((xi-xj)*(xi-xj))+1.0*((yi-yj)*(yi-yj)));}
vector<ll>needlv(200005,-1);
ll l[200005],a[200005];
void kakutei(ll pos){
    if(needlv[pos]==-2)return;
    if(needlv[pos]!=-1)return;
    if(needlv[a[pos]]>-1){
        needlv[pos]=max(l[pos],needlv[a[pos]]);
    }
    else{
        needlv[pos]=-2;
        kakutei(a[pos]);
        if(needlv[a[pos]]>-1){
            needlv[pos]=max(l[pos],needlv[a[pos]]);
        }

    }
}
void _main(){
    ll n;cin >> n;
    l[0]=0;a[0]=0;needlv[0]=0;
    rep(i,1,n){
        cin >> l[i] >> a[i];
        a[i]--;
    }
    rep(i,0,n){
        kakutei(i);
    }
    map<ll,ll>qone;
    for(ll i:needlv){
        if(i<0)continue;
        qone[i]++;
        
    }
    vector<ll>ans;
    vector<ll>ans_name;
    ll prev = 0;
    for(auto i:qone){
        ans_name.push_back(i.first);
        ans.push_back(prev+i.second);
        prev = ans.back();
    }
    
    ll q;cin >> q;
    while (q--)
    {
        ll t,x;cin >> t;
        if(t==1){
            cin >> x;
            ll pos = upper_bound(ALL(ans_name),x)-ans_name.begin();
            pos--;
            cout<<ans[pos]<<endl;
        }
        else{
            cin >> x;
            cout<<(needlv[x-1]>0?needlv[x-1]:-1)<<endl;
        }
    }
    
}