Fruit or vegetable

s = input()

if (s == "banana" or s == "apple" or s == "kiwi" or s == "cherry" or s == "lemon" or s == "grapes"):
  print("fruit")
elif (s == "tomato" or s == "cucumber" or s == "pepper" or s == "carrot"):
  print("vegetable")
else:
  print("unknown")