<https://secure.gravatar.com/avatar/ea80a8b375167f2d3efa08620c13aac3?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://intersolia.com/sv/ordlista/kemiska-arbetsmiljorisker/>