#include<bits/stdc++.h>
using namespace std;
int main(){
	int T,b=1;
	cin>>T;
	while(T--){
	    string in;
		cin>>in;
		if(in[0]=='D'&&in[1]=='X'){
			cout<<"yes"<<endl;continue;
		}
		int len=in.length();
		for(int i=2;i<len-4;i++){
			if(in[i]==in[i+1]&&in[i+1]==in[i+2]&&in[i+2]==in[i+3]){
				b=0;
				cout<<"yes"<<endl;break;
			}
		}
		if(b==1)cout<<"no"<<endl;
		b=1;
	}
	return 0;
}