cat
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'category', 'field' => 'slug', 'operator' => 'AND', 'include_children' => false, ), );
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'category', 'field' => 'slug', 'operator' => 'AND', 'include_children' => false, ), );