Write a Python function that will query words to form the 'query' list via 'input' until the user writes 'end'. If the user writes 'end', the function will store all the words in comma-separated list format in the 'query' variable and terminate the function.

def words():
  query = []
  while True:
    word = input("Enter word: ")
    if word == "end":
      print("Ending")
      break
    else:
      query.append(word)
  print(" ".join(query))

words()