FruitOrVegetable

namespace FruitOrVegetable
{
    using System;

    class FruitOrVegetable
    {
        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("vegetable");
            }
            else
            {
                Console.WriteLine("unknown");
            }
        }
    }
}