from sys import stdin
import bisect
from collections import deque

N = int(stdin.readline())

L = [0] + [float("inf")] * (N-1)

lis = [ [] for i in range(N) ]

for i in range(N-1):

    l,a = map(int,stdin.readline().split())
    a -= 1
    lis[a].append( (i+1,l) )

q = deque([0])
while q:
    v = q.popleft()
    for nex,cost in lis[v]:
        L[nex] = max(L[v] , cost)
        q.append(nex)

L2 = [i for i in L]
L2.sort()

Q = int(stdin.readline())

ANS = []
for loop in range(Q):

    ty,x = map(int,stdin.readline().split())

    if ty == 1:
        idx = bisect.bisect_right(L2,x)
        ANS.append(idx)
    else:
        if L[x-1] == float("inf"):
            ANS.append(-1)
        else:
            ANS.append(L[x-1])

print (*ANS,sep="\n")