#include #include #include
using namespace std;
bool check(string a, string b) { if(a == "shitou") return b == "jiandao"; if(a == "jiandao") return b == "bu"; if(a == "bu") return b == "shitou"; return false; }
int main() { int T; cin >> T; while ( T -- ) { string a, x1; string b, x2; cin >> a >> x1 >> b >> x2;
if(x1 == x2) {
puts("yi qi chi shi.");
continue;
}
if(check(x1, x2)) cout << b << " chishi." << endl;
else cout << a << " chishi." << endl;
}
return 0;
}