"""

https://yukicoder.me/problems/no/1790

"""

import sys
from sys import stdin

from collections import deque
inf = float("inf")

N = int(stdin.readline())

lis = [ [] for i in range(N) ]
p = [ (None,None) for i in range(N) ]

for i in range(N-1):
    L,R,A = map(int,stdin.readline().split())
    L -= 1
    R -= 1
    lis[L].append( (R,A) )
    lis[R].append( (L,A) )

dlis = [inf] * N
dlis[0] = 0
q = deque([0])

while q:
    v = q.popleft()
    for nex,na in lis[v]:
        if dlis[nex] > dlis[v] + 1:
            dlis[nex] = dlis[v] + 1
            p[nex] = (v,na)
            q.append(nex)

dv = [ (dlis[i],i) for i in range(N) ]
dv.sort()
dv.reverse()
nxor = [0] * N

for nd,nv in dv:

    np,na = p[nv]
    if np != None:
        nxor[np] ^= na ^ nxor[nv]

exist = [True] * N
ans = []

Q = int(stdin.readline())
for loop in range(Q):
    t,x = map(int,stdin.readline().split())
    x -= 1

    if t == 2:
        if exist[x]:
            ans.append(str(nxor[x]))
        else:
            ans.append("0")
    else:
        if not exist[x]:
            continue

        q = deque([x])
        while q:
            v = q.popleft()
            exist[v] = False
            for nex,na in lis[v]:
                if dlis[nex] > dlis[v]:
                    q.append(nex)

        v = x
        plxor = nxor[x] ^ p[x][1]
        while v != None:
            nxor[v] ^= plxor
            v = p[v][0]

print ("\n".join(ans))