import sys
sys.setrecursionlimit(10**7)
def input():
	return sys.stdin.readline()[:-1]
MOD = 10**9+7

n = int(input())
aff = [0 for _ in range(n)]
adj = [[] for _ in range(n)]
for _ in range(n-1):
	u, v = map(int, input().split())
	adj[u-1].append(v-1)
	aff[v-1] += 1
for i, x in enumerate(aff):
	if x == 0:
		root = i
		break

ans = 0
dp_val = [0 for _ in range(n)]
dp_num = [1 for _ in range(n)]

ans = 0
def dfs(x):
	global ans
	for v in adj[x]:
		dfs(v)
		dp_num[x] += dp_num[v]
		dp_num[x] %= MOD
		dp_val[x] += dp_val[v] + dp_num[v]
		dp_val[x] %= MOD
	ans += dp_val[x]
	ans %= MOD

dfs(root)
print(ans)