code: def _parse_keywords(self, prop):
          
  
          keywords = []
  
          if prop in KEYWORD_PROPS:
              xpath_root = self._data_map['_keywords_root']
              xpath_map = self._data_structures[prop]
  
              xtype = xpath_map['keyword_type']
              xpath = xpath_map['keyword']
              ktype = KEYWORD_TYPES[prop]
  
              for element in get_elements(self._xml_tree, xpath_root):
                  if get_element_text(element, xtype).lower() == ktype.lower():
                      keywords.extend(get_elements_text(element, xpath))
  
          return keywords
docs: Parse type-specific keywords from the metadata: Theme or Place