#include <fstream>
#include <bitset>

// O(N^3)

#include <fstream>
#include <bitset>

using namespace std;

#define Dm 105

bitset<Dm> A[Dm];
int M,N,Q;

ifstream F("vtc.in");
ofstream G("vtc.out");

int main()
{
	F>>N>>M;
	for (int i=1;i<=M;++i)
	{
		int x,y;
		F>>x>>y;
		A[x][y]=1;
	}
	for (int k=1;k<=N;++k)
		for (int i=1;i<=N;++i)
			for (int j=1;j<=N;++j)
				if ( !A[i][j] && A[i][k] && A[k][j] )
					A[i][j]=1;
	for (F>>Q;Q;--Q)
	{
		int x,y;
		F>>x>>y;
		if ( A[x][y] && A[y][x] ) 
			G<<"tare-conex\n"; else
		if ( A[x][y] ) 
			G<<"conex\n"; else
			G<<"neconex\n";
	}
}
