#include <bits/stdc++.h>
#define int long long
using namespace std;

void solve(){
    string s1,s2,s3;
    cin>>s1>>s2>>s3;
    int len1=s1.length(),len2=s2.length(),len3=s3.length();
    if(len1!=len2){
        cout<<"NO"<<"\n";
        return;
    }
    if(len3!=len1){
        cout<<"YES"<<"\n";
        return;
    }
    int cnt=0;
    for(int i=0;i<len1;i++){
        if(s3[i]==s1[i] || s3[i]==s2[i]) ++cnt;
    }
    if(cnt==len1) cout<<"NO"<<"\n";
    else cout<<"YES"<<"\n";

}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int T=1;
    cin>>T;
    while(T--){
        solve();
    }
    return 0;
}

/*
 2
 4 2
 3 6
 1 3
 2 7
 5 6
 2 5
 2 4
 6 8

*/