#include<bits/stdc++.h>
using namespace std;
int n,hh[1000005],u,x,y,m;
vector<int>a[1000005];
inline void dfs(int u,int fa)
{
	for(int i=0;i<a[u].size();i++)
	if(fa!=a[u][i])dfs(a[u][i],hh[a[u][i]]=u);
}
inline int read()
{
	char ch;
	int a=0;
	ch=getchar();
	while(!('0'<=ch&&ch<='9'))ch=getchar();
	while(ch>='0'&&ch<='9')
	a=a*10+ch-'0',
	ch=getchar();
	return a;
}
inline void out(int x)
{
	if(x>=10)out(x/10);
	putchar(x%10+'0');
}
int main()
{
	freopen("wgs.in","r",stdin);
	freopen("wgs.out","w",stdout);
	n=read();
	u=read();
	for(int i=1;i<=n-1;i++)
	{
		x=read();
		y=read();
		a[x].push_back(y);
		a[y].push_back(x);
	}
	m=read();
	dfs(u,-1);
	hh[u]=-1;
	for(int i=1;i<=m;i++)
	{
		int r=read();
		if(r!=u)
		out(hh[r]);
		else printf("%d",hh[u]);
	}
	return 0;
}