abbreviated breakdown of DF xml export tags

<df_world>


<regions>
 <region>
  <id>
  <name>
  <type>
<underground_regions>
 <underground_region>
  <id>
  <type>
  <depth>
<sites>
 <site>
  <id>
  <type>
  <name>
  <coords>
  <structures>
<world_constructions>
 <world_construction>
  <id>
<artifacts>
 <artifact>
  <id>
  <name>
  <item>
<historical_figures>
 <historical_figure>
  <id>
  <name>
  <race>
  <caste>
  <appeared>
  <birth_year>
  <birht_seconds72>
  <death_year>
  <death_seconds72>
  <associated_type>
  <entity_link>
   ...
  <site_link>
   ...
  <sphere>
  <hf_skill>
   ...
  <interaction_knowledge>
  <journey_pet>
  <hf_link>
   ...
  <deity/>
  <entity_former_position_link>
   ...
  <entity_position_link>
   ...
  <ent_pop_id>
  <active_interaction>
  <goal>
  <force/>
  <entity_reputation>
   ...
  <current_identity_id>
  <holds_artifact>
  <animated/>
  <animated_string>
  <ghost/>
  <adventurer/>
<entity_populations>
 <entity_population>
  <id>
<entities>
 <entity>
  <id>
  <name>
<historical_events>
 <historical_event>
  <id>
  <year>
  <seconds72>
  <type>
  (each type has differnet tags, there are a lot of types..)
<historical_event_collections>
 <historical_event_collection>
  <id>
  <start_year>
  <start_seconds72>
  <end_year>
  <end_seconds72>
  <event>
  <type>
  (each type has differnet tags, there are a lot of types..)
<historical_eras>
 <historical_era>
  <name>
  <start_year>