//Sarvagya Agarwal
#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<=b;++i)
#define is(X) cout<<#X<<" is "<<X<<endl
#define ff first
#define ll long long
#define ss second
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#define pb push_back
#define mp make_pair
#define openin freopen("input.txt","r",stdin)
#define openout freopen("output.txt","w",stdout)
int main()
{
    fast;
    //openin;
    int t;
    cin>>t;
    while(t--)
    {
    	string s,temp1,temp2,temp3,temp4;
    	cin>>s;
    	set<string> ss;
    	int n = s.size();bool flag=false;
    	for(int i=1;i<n;++i)
    	{
    		for(int j=i+1;j<n;++j)
    		{
    			for(int k=j+1;k<n;++k)
    			{
    				temp1="";temp2="";temp3="";temp4="";
    				for(int z = 0;z<i;z++)temp1+=s[z];
    				for(int z = i;z<j;z++)temp2+=s[z];
    				for(int z = j;z<k;z++)temp3+=s[z];
    				for(int z = k;z<n;z++)temp4+=s[z];
    				if(temp1.size()==0 || temp2.size()==0 || temp3.size()==0 || temp4.size()==0)continue;
    				ss.insert(temp1);ss.insert(temp2);ss.insert(temp3);ss.insert(temp4);
    				if(ss.size()==4)
    				{
    					flag=true;
    					cout<<"YES\n";
    					break;
    				}
    				ss.clear();
    			}
    			if(flag)break;
    		}
    		if(flag)break;
    	}
    	if(!flag)cout<<"NO\n";
    }

    return 0;
}