code: def _normalize(self, string):
  		''' Returns a sanitized string. '''
  
  		string = string.replace(u'\xb7', '')
  		string = string.replace(u'\xa0', ' ')
  		string = string.replace('selten: ', '')
  		string = string.replace('Alte Rechtschreibung', '')
  		string = string.strip()
  		return strinf _normalize(self, string):
  		''' Returns a sanitized string. '''
  
  		string = string.replace(u'\xb7', '')
  		string = string.replace(u'\xa0', ' ')
  		string = string.replace('selten: ', '')
  		string = string.replace('Alte Rechtschreibung', '')
  		string = string.strip()
  		return string
docs: Returns a sanitized string.