PRODUCT_CONCEPT_SCHEMA
short long
e Application_context
e Application_context_element
e Concept_feature_operator
e Concept_feature_relationship
e Concept_feature_relationship_with_condition
e Conditional_concept_feature
dr Identifier
dr Label
e Product_concept
er Product_concept_context
e Product_concept_feature
e Product_concept_feature_association
e Product_concept_relationship
dr Text