import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        List<List<Integer>> graph = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            graph.add(new ArrayList<>());
        }
        int[] levels = new int[n];
        for (int i = 1; i < n; i++) {
            levels[i] = sc.nextInt();
            int x = sc.nextInt() - 1;
            graph.get(x).add(i);
        }
        TreeMap<Integer, Integer> counts = new TreeMap<>();
        Deque<Path> deq = new ArrayDeque<>();
        deq.add(new Path(0, 1));
        boolean[] visited = new boolean[n];
        while (deq.size() > 0) {
            Path p = deq.poll();
            p.value = Math.max(p.value, levels[p.idx]);
            levels[p.idx] = p.value;
            visited[p.idx] = true;
            counts.put(p.value, counts.getOrDefault(p.value, 0) + 1);
            for (int x : graph.get(p.idx)) {
                deq.add(new Path(x, p.value));
            }
        }
        int current = 0;
        for (int x : counts.keySet()) {
            current += counts.get(x);
            counts.put(x, current);
        }
        int q = sc.nextInt();
        String result = IntStream.range(0, q).mapToObj(i -> {
            int type = sc.nextInt();
            int x = sc.nextInt();
            if (type == 1) {
                return counts.floorEntry(x).getValue().toString();
            } else {
                return visited[x - 1] ? String.valueOf(levels[x - 1]) : "-1";
            }
        }).collect(Collectors.joining("\n"));
        System.out.println(result);
    }
    
    static class Path {
        int idx;
        int value;
        
        public Path(int idx, int value) {
            this.idx = idx;
            this.value = value;
        }
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}