<https://www.gpssentangfocus.com/post/nft-for-business-the-future-of-marketing-with-line-creators>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.gpssentangfocus.com/post/nft-for-business-the-future-of-marketing-with-line-creators>