import java.util.Scanner;

public class FruitOrVegetable__06 {
    public static void main(String[] args) {
        Scanner scan = new Scanner (System.in);
        String kind = scan.nextLine();
        //да напишем програма която проверява дали е плод или зеленчук;
        //плодовете са banana, apple, kiwi, cherry, lemon and grapes;
        //зеленчуците са tomato, cucumber, pepper and carrot;

        if (kind.equals("banana") || kind.equals("apple") || kind.equals("kiwi") || kind.equals("cherry") ||
                kind.equals("lemon") || kind.equals("grapes")){
                    System.out.println("fruit");
        } else if ("tomato".equals(kind) || "cucumber".equals(kind) || "pepper".equals(kind) || "carrot".equals(kind)){
            System.out.print("vegetable");
        } else {
			System.out.print("unknown");
		}
    }
}