Unsophisticated Python Chains

def into_chains(self, texts, chainlength):# PRECONDITION: texts only contains strings of chainlength or greater words		chains = []				for text in texts:			shattered = text.split()						for index in range(0, len(shattered) - chainlength):				chains.append(" ".join(shattered[index:index+chainlength-1])						return chains