function test_delete()
 {
     $users_ids = get_users(array('fields' => 'id'));
     foreach ($users_ids as $user_id) {
         // Get the URI.
         $user_uri = Wordlift_User_Service::get_instance()->get_uri($user_id);
         $query = Wordlift_Query_Builder::new_instance()->delete()->statement($user_uri, Wordlift_Query_Builder::RDFS_TYPE_URI, '?o')->build() . Wordlift_Query_Builder::new_instance()->delete()->statement($user_uri, Wordlift_Query_Builder::RDFS_LABEL_URI, '?o')->build() . Wordlift_Query_Builder::new_instance()->delete()->statement($user_uri, Wordlift_Query_Builder::SCHEMA_GIVEN_NAME_URI, '?o')->build() . Wordlift_Query_Builder::new_instance()->delete()->statement($user_uri, Wordlift_Query_Builder::SCHEMA_FAMILY_NAME_URI, '?o')->build();
         $this->log_service->info($query);
     }
 }
 /**
  * Get the insert query.
  *
  * @since 3.1.7
  *
  * @param int $user_id The user id.
  *
  * @return false|string The insert query or false in case of failure.
  */
 private function get_insert_query($user_id)
 {
     // Get the URI, return if there's none.
     if (false === ($user_uri = $this->get_uri($user_id))) {
         return false;
     }
     // Try to get the user data, in case of failure return false.
     if (false === ($user = get_userdata($user_id))) {
         return false;
     }
     // Build the insert query.
     $query = Wordlift_Query_Builder::new_instance()->insert()->statement($user_uri, Wordlift_Query_Builder::RDFS_TYPE_URI, Wordlift_Query_Builder::SCHEMA_PERSON_URI)->statement($user_uri, Wordlift_Query_Builder::RDFS_LABEL_URI, $user->display_name)->statement($user_uri, Wordlift_Query_Builder::SCHEMA_GIVEN_NAME_URI, $user->user_firstname)->statement($user_uri, Wordlift_Query_Builder::SCHEMA_FAMILY_NAME_URI, $user->user_lastname)->statement($user_uri, Wordlift_Query_Builder::SCHEMA_URL_URI, !empty($user->user_url) ? $user->user_url : get_author_posts_url($user_id))->build();
     return $query;
 }