<https://schema.org/about> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#ObjectProperty> .
<https://schema.org/about> <http://www.w3.org/2002/07/owl#inverseOf> <https://schema.org/subjectOf> .
<https://schema.org/about> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#ObjectProperty> .
<https://schema.org/about> <http://www.w3.org/2002/07/owl#inverseOf> <https://schema.org/subjectOf> .