#include <bits/stdc++.h>
using namespace std;
const int N = 2e5+10;
int num[N];
int a[N];
int c[N];
int main(){
int n;
cin>>n;
for(int i = 1;i<=n-1;i++){
int x,y;
cin>>x>>y;
num[x]++;
a[y] = x;
}
for(int i = 1;i<=n;i++){
cin>>c[i];
}
int k = 2;
for(int i = 1;i<=n;i++){
if(num[c[i]]){
for(int j = k;j<=k+num[c[i]]-1;j++){
if(a[c[j]]!=c[i]){
cout<<"No"<<"\n";
return 0;
}
}
}k = k+num[c[i]];
}
cout<<"Yes"<<"\n";
return 0;
}
