#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for (int i = a; i < (b); i++)
#define all(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())

void solve() {
    string s1, s2, s3;
    cin >> s1 >> s2 >> s3;
    if (SZ(s1) != SZ(s2)) {
        return cout << "NO" << '\n', void();
    }
    if (SZ(s3) != SZ(s1)) {
        return cout << "YES" << '\n', void();
    }
    bool chk = 0;
    rep(i, 0, SZ(s3)) {
        if (!(s3[i] == s1[i] || s3[i] == s2[i])) {
            chk = 1;
        }
    }
    cout << (chk ? "YES" : "NO") << '\n';
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int tt;
    cin >> tt;
    while (tt--) {
        solve();
    }
}