a Property is a Feature/Attribute of a Topic
see * https://semantic-mediawiki.org/wiki/Help:Properties_and_types * https://semantic-mediawiki.org/wiki/Help:Special_properties * https://semantic-mediawiki.org/wiki/Help:List_of_datatypes
Concept:Property Concept:Property
Property# QUERY57abd5eb467c88f874505f2ac4f17796
Property# QUERY6c97e4999b81db65350c1fcd678b73f2
Property# ERReeefcf87fd3a2b1f7b9bb119d9ffa012