#include<iostream>
#include<cmath>
#include<cstring>
#include<algorithm>
#include<cstdio>
#include<map>
#include<string>
using namespace std;
int m;string s;
map<string,int> rid;
int check(string s){
	int len=s.size();
	int flag=0;
	string temp=s;
	for(int i=0;i<=len;i++){
		if(s[i]=='*'){
			for(int j=0;j<=25;j++){
				temp[i]=j+'a';
				if(rid.count(temp))return 1;
			}
		}
	}
	return 0;
}
int main(){
	freopen("asm_talk.in","r",stdin);
	freopen("asm_talk.out","w",stdout);
	cin>>m;
	for(int i=1;i<=m;i++){
		int temp;
		cin>>temp;cin>>s;
		if(temp==1)rid[s]=1;
		else{
		    if(rid.count(s))cout<<"YES\n";
		    else{
				if(check(s))cout<<"YES\n";
				else cout<<"NO\n";
			}
		}
	}
	return 0;
}