Keywords are normalized to lowercase.

Value constraint types and value node types are normalized to lowercase. In the example below, “LITERAL”, “Literal”, and “lITERAL” are normalized to “literal”, while “Picklist”, “PICKLIST”, and “pICKLIST” are normalized to “picklist”.

Property ID	Value_Node_type	Value_Constraint	Value_Constraint_Type
dc:subject	Literal	Kish Uruk Nuzi	Picklist
dc:subject	LITERAL	Kish Uruk Nuzi	PICKLIST
dc:subject	lITERAL	Kish Uruk Nuzi	pICKLIST

Interpreted as:

DCTAP instance
Shape
    shapeID                  default
    Statement Template
        propertyID           dc:subject
        valueNodeType        literal
        valueConstraint      ['Kish', 'Uruk', 'Nuzi']
        valueConstraintType  picklist
    Statement Template
        propertyID           dc:subject
        valueNodeType        literal
        valueConstraint      ['Kish', 'Uruk', 'Nuzi']
        valueConstraintType  picklist
    Statement Template
        propertyID           dc:subject
        valueNodeType        literal
        valueConstraint      ['Kish', 'Uruk', 'Nuzi']
        valueConstraintType  picklist