INSTANCE optional_xor_empty_aggregation#3;
extracted_from = {explicit_attribute#297};
corresponds_to = {correspondence#95};
attribute = explicit_attribute#297;
END_INSTANCE;
INSTANCE optional_xor_empty_aggregation#4;
extracted_from = {explicit_attribute#309};
corresponds_to = {correspondence#95};
attribute = explicit_attribute#309;
END_INSTANCE;