<https://www.ellybeandesigns.com/blogs/the-ellybean-jar/5-easy-rainbow-activities-to-wow-the-kids>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.ellybeandesigns.com/blogs/the-ellybean-jar/5-easy-rainbow-activities-to-wow-the-kids>