B0043.cpp

// Problem Code: TWOSTR

#include <iostream>
#include <string>

using namespace std;

string chefAndWildcard(string X, string Y) {
	for(int i=0 ; i<X.length() ; i++)
		if( (X[i] != Y[i]) && (X[i] != '?' && Y[i] != '?') )
			return "No";
	return "Yes";
}

int main() {
	int T;
	string X, Y;
	cin >> T;
	while(T--) {
		cin >> X >> Y;
		cout << chefAndWildcard(X, Y) << endl;
	}
	return 0;
}