Layer_assignment_arm
short long

eu	Amount_of_substance_unit
du	Any_number_value
du	Any_string_value
eu	Context_dependent_unit
eu	Conversion_based_unit
eu	Derived_unit
eu	Derived_unit_element
eu	Duration
eu	Electric_current_unit
eu	Group
eu	Group_relationship
du	Groupable_item
e	Layer
du	Length_measure
eu	Length_unit
eu	Luminous_intensity_unit
eu	Mass_unit
du	Measure_value
eu	Numerical_representation_context
du	Plane_angle_measure
eu	Plane_angle_unit
eu	Ratio_unit
eu	Representation
eu	Representation_context
eu	Representation_item
eu	Representation_relationship
eu	Solid_angle_unit
eu	String_representation_item
e	Structuring_method_hierarchy
d	Structuring_method_select
eu	Thermodynamic_temperature_unit
eu	Time_unit
eu	Uncertainty_with_unit
eu	Unit
eu	Value_with_unit