<https://secure.gravatar.com/avatar/9b535d087df6a60f24b56c0fce1afca6?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://projectorideas.com/how-much-energy-does-projector-use/>