using System;

public class Program

{

    public static void Main()

    {

        string plod = Console.ReadLine().ToLower();

        switch(plod)

        {

        case"apple": case "banana" :case"kiwi": case"cherry": case"lemon": case"grapes":

                Console.WriteLine("fruit");

                break;

        case"tomato": case"cucumber": case"pepper": case"carrot":

                Console.WriteLine("vegetable");

                break;

            default:

                Console.WriteLine("unknown");

                    break;

        }

    }

}