PRODUCT_BREAKDOWN_MIM
short long

e	Breakdown_context
e	Breakdown_element_group_assignment
e	Breakdown_element_realization
e	Breakdown_element_usage
e	Breakdown_of
e	Product_definition_element_relationship
e	Product_definition_group_assignment
d	Product_definition_or_breakdown_element_usage
d	Product_definition_or_product_definition_relationship