2 Organe ausschließen

$tax_query = array(
	'relation' => 'OR',
	array(
		'taxonomy'         => 'organ',
		'terms'            => '100',
		'include_children' => false,
	),
	array(
		'taxonomy'         => 'organ',
		'terms'            => '101',
		'include_children' => true,
	),
);