#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
int const N=300001,poc=1<<19;
int tree[2*poc+1],gl[N],l=1,w,a,b,c;
pair<int,int>odw[N];
vector<int>g[N];
 
void dfs(int v){
    odw[v].F=l;
    for(int i:g[v]){
        if(odw[i].F==0) {
        	if(gl[i]==0) gl[i]=gl[v]+1;
        	dfs(i);
        }
    }
    odw[v].S=l;
    l++;
}
 
void Update(int v,int p,int k){
    if(b<p||k<a) return;
    if(a<=p&&k<=b) tree[v]++;
    else{
        Update(2*v,p,(p+k)/2); Update(2*v+1,(p+k)/2+1,k);
    }
}
 
int Read(int v){
    w=tree[v];
    v/=2;
    while(v>0){
        w+=tree[v];
        v/=2;
    }
    return w;
}
 
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
    int n,m;
    char x;
    cin>>n;
    for(int i=1;i<n;i++){
        cin>>a>>b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    dfs(1);
    cin>>m;
    for(int i=1;i<n+m;i++){
        cin>>x;
        if(x=='A'){
            cin>>a>>b;
            if(gl[a]>gl[b]) swap(a,b);
            a=odw[b].F+poc;
            b=odw[b].S+poc;
            Update(1,poc+1,2*poc);
        }
        else{
            cin>>a;
            cout<<gl[a]-Read(odw[a].F+poc)<<"\n";
        }
    }
}

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5
1 2
1 3
1 4
4 5
4
A 4 5
W 5
A 1 5
W 5
W 2
A 1 2
W 2
A 1 3