from collections import deque

MOD = 10 ** 9 + 7

n = int(input())
root = set(range(n))
edges = [[] for _ in range(n)]
for _ in range(n - 1):
    a, b = map(int, input().split())
    edges[a - 1].append(b - 1)
    root.remove(b - 1)

for s in root:
    break

queue = deque()
queue.append(s)
lst = []
while queue:
    pos = queue.popleft()
    lst.append(pos)
    for npos in edges[pos]:
        queue.append(npos)

dp = [0] * n
cnt = [0] * n

for pos in lst[::-1]:
    cnt[pos] = 1
    for npos in edges[pos]:
        dp[pos] += dp[npos] + cnt[npos]
        cnt[pos] += cnt[npos]
        dp[pos] %= MOD
        cnt[pos] %= MOD
    
print(sum(dp) % MOD)