#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include<bits/stdc++.h>
#define ll int
#define ld long double
#define fs first
#define sc second
using namespace std;
typedef pair<ll,ll> LL;
const ll N = 2e3 + 9;
const ll inf = 1e9 + 7;
vector<ll> g1[N],g2[N];
ll n,Q,x,y,JOI,IOI,a[N][N];
ll id_JOI[N],id_IOI[N],cur = 1,par_JOI[N],par_IOI[N];
void DFS_JOI(ll u,ll p){
id_JOI[u] = cur; cur++; par_JOI[u] = p;
for (auto i : g1[u]) if (i != p) DFS_JOI(i,u);
}
void DFS_IOI(ll u,ll p){
id_IOI[u] = cur; cur++; par_IOI[u] = p;
for (auto i : g2[u]) if (i != p) DFS_IOI(i,u);
}
ll dp[2500][2500];
ll f(ll x,ll y){
if (x == 0||y == 0) return 0;
if (dp[x][y] != -1) return dp[x][y];
ll p = par_JOI[x],q = par_IOI[y];
ll cx = id_JOI[x],cy = id_IOI[y];
ll ans = f(p,y) + f(x,q) - f(p,q) + a[cx][cy];
return dp[x][y] = ans;
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#define task "tst"
if (fopen(task".INP","r")){
freopen(task".INP","r",stdin);
//freopen(task".OUT","w",stdout);
}
cin>>n>>Q;
for (ll i = 1;i <= n;i++){
cin>>x>>y;
if (!x) JOI = i;
else g1[x].push_back(i);
if (!y) IOI = i;
else g2[y].push_back(i);
}
DFS_JOI(JOI,0); cur = 1; DFS_IOI(IOI,0); memset(dp,-1,sizeof(dp));
while(Q--){
cin>>x>>y;
ll p = id_JOI[x],q = id_IOI[y]; a[p][q]++;
}
//for (ll i = 1;i <= n;i++) cout<<id_JOI[i]<<" "<<id_IOI[i]<<"\n"; return 0;
for (ll i = 1;i <= n;i++) cout<<f(i,i)<<"\n";
}
