Time_duration_relationship

eu	Product
eu	Product_category
eu	Product_category_assignment
eu	Product_category_hierarchy
eu	Product_version
eu	Product_view_definition
e	Time_duration
e	Time_duration_relationship
eu	Transformation
eu	Transformation_version
eu	Transformation_view_definition
eu	Transformation_view_definition_relationship
eu	View_definition_context
eu	View_definition_relationship
eu	View_definition_usage