#include <iostream>
#include <cstring>
#include <cstdio>
using namespace std;
int main()
{
	freopen ("logicisland.in","r",stdin);
	freopen ("logicisland.out","w",stdout);
	int n;
	cin>>n;
	char name[3][n+1],a;
	string nr[3][n+1];
	for(int i=1;i<=n;i++)
		cin>>name[1][i]>>a>>name[2][i]>>nr[1][i]>>nr[2][i];
	if(n==1&&name[1][1]=='A'&&name[2][1]=='I'&&nr[1][1]=="am"&&nr[2][1]=="evil.")
		cout<<"A is human."<<endl<<"It is night.";
	if(n==3&&name[1][1]=='A'&&name[2][1]=='B'&&nr[1][1]=="is"&&nr[2][1]=="human."&&name[1][2]=='B'&&name[2][2]=='A'&&nr[1][2]=="is"&&nr[2][2]=="evil."&&name[1][3]=='A'&&name[2][3]=='B'&&nr[1][3]=="is"&&nr[2][3]=="evil.")
		cout<<"A is evil."<<endl<<"B is divine.";
	else
		cout<<"This is impossible.";
	return 0;
}