<https://data.aeroleads.com/data/list-of-5000-websites-using-firebase/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://data.aeroleads.com/buy-b2b-data-email-lists/page/7/?add_to_wishlist=2632&add-to-cart=2624>