shapes-ISSUE-40 (Property Cardinality): sh:min/max constrains properties, not values

shapes-ISSUE-40 (Property Cardinality): sh:min/max constrains properties, not values

http://www.w3.org/2014/data-shapes/track/issues/40

Raised by: Karen Coyle
On product: 

The spec at https://w3c.github.io/data-shapes/shacl/ currently reads:

"The properties sh:minCount and sh:maxCount restrict the number of values of the given property at the focus node."

It should read:
"The properties sh:minCount and sh:maxCount restrict the cardinality of properties of the focus node."

The cardinality of the value of a triple is always min=1 max=1. It is the cardinality of the properties in the node that can be constrained, e.g. 

sh:property [
		sh:predicate foaf:name ;
		sh:minCount 1 ;
		sh:maxCount 1 .