#include<cstdio>
#include<string>
#include<deque>
#include<iostream>
#include<map>
using namespace std;
const int SIZEN=100010;
string a;
map<string,bool> mp;
int T,tot=0;
bool pan(string a)
{
	if(mp[a]==1) return 1;
	int t=-1;
	for(int i=0;i<a.size();i++) 
	{
		if(a[i]=='*') t=i;
	}
	if(t==-1) return 0;
	for(char i='a';i<='z';i++)
	{
		a[t]=i;
		if(mp[a]==1) return 1;
	}
	return 0;
}
int main()
{
	freopen("asm_talk.in","r",stdin);
	freopen("asm_talk.out","w",stdout);
	scanf("%d",&T);
	int cmd;
	while(T)
	{
		T--;
		scanf("%d",&cmd);
		cin>>a;
		if(cmd==1) mp[a]=1;
		if(cmd==2)
		{
			if(pan(a)) printf("YES\n");
			else printf("NO\n");
		}
	}
	return 0;
}