using System;

namespace FruitOrVegetable_Switch_
{
internal class Program
{
    static void Main(string[] args)
    {
        string product = Console.ReadLine();

        switch (product)
        {
            case "banana":
            case "apple":
            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;
        }
    }
}
}