<https://www.360technosoft.com/blog/your-iphone-isnt-slow-your-iphone-app-makes-it-slow#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.360technosoft.com/blog/your-iphone-isnt-slow-your-iphone-app-makes-it-slow>