<https://www.iproup.com/coffee-break/26912-este-carrito-inteligente-te-ayudara-en-tus-compras-en-el-mercado>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.iproup.com/coffee-break/26912-este-carrito-inteligente-te-ayudara-en-tus-compras-en-el-mercado>