<https://secure.gravatar.com/avatar/9c2611db644cb5c046c210fbccc44667?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://charcoalmachines.com/vi/two-charcoal-furnaces-exported-to-australia/>