An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

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  • Warning: Undefined property: stdClass::$dct:modified in SkosmosClient\Concept->getModified() (line 103 of /app/drupal/agclass/vendor/dcameron/skosmos_client/src/Concept.php).
  • Warning: Attempt to read property "value" on null in SkosmosClient\Concept->getModified() (line 103 of /app/drupal/agclass/vendor/dcameron/skosmos_client/src/Concept.php).
  • Deprecated function: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in Drupal\views_skosmos\Plugin\views\query\Concept->getRows() (line 115 of modules/contrib/views_skosmos/src/Plugin/views/query/Concept.php).
  • Warning: Attempt to read property "lang" on string in SkosmosClient\Concept->getValueForLang() (line 430 of /app/drupal/agclass/vendor/dcameron/skosmos_client/src/Concept.php).

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RDF/XMLCreated 2023-04-03, last modified