<https://secure.gravatar.com/avatar/ef9c85882f738a7aa9d79a3c1aa61622?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://knowmotorcycles.com/how-to-clean-motorcycle-engine-fins/>