<https://secure.gravatar.com/avatar/651a7380525e9ce58e2a3d72b6c1e94c?s=96&d=mm&r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.lernerandassoc.com/blog/choosing-an-injection-molding-provider/>