def remove_numbers(words):
	"""Remove all numbers from word list.
	
	Unlike words, numbers without any context are not expected to provide any explanatory value for topic classification.
	
	Parameters
	----------
	words : string
		Original word-token list
	
	Returns
	-------
	new_words : list of strings
		List with all remaining word-tokens
	"""
	
	new_words = []
	for word in words:
		if not word.isdigit():
			new_words.append(word)
		else:
			pass

	return new_words