using System;

public class Program

{

    public static void Main()

    {

        var s = Console.ReadLine();

        if( s=="banana" || s == "apple" || s== "kiwi" || s== "cherry" || s== "lemon" || s == "grapes")

        {Console.WriteLine("fruit");}

    else if ( s== "tomato" || s=="cucumber" || s== "pepper" || s == "carrot")

    {Console.WriteLine("vegetables");}

        else 

            Console.WriteLine("unknown");

    }

}

​

​

​