<https://www.datanami.com/2019/03/19/4-apache-cassandra-pitfalls-you-must-avoid/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.datanami.com/2019/03/19/4-apache-cassandra-pitfalls-you-must-avoid/>