<https://secure.gravatar.com/avatar/b6506d983b30e4e1b880887a162160ef?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://hummingbirdsinfo.com/web-stories/simple-diy-hummingbird-feeder-tube/>