[Description] A child element that must be contained by this role. For example a list must contain a listitem. [Values] Any valid RDF object reference, such as a URI or RDF ID. [Related Concepts] http://www.w3.org/2004/02/skos/core#subject OWL Cardinality http://www.w3.org/TR/owl-ref/#CardinalityRestriction [Property] 
mustContain
s u p p o r t e d S t a t e
m u s t C o n t a i n
s c o p e
m e d i a
i m p o r t a n c e
n a m e R e f