<https://www.eleccircuit.com/#/schema/person/ce1c88ae381c9b50b8fa734ad0712f2f>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Person>
<https://www.eleccircuit.com/simple-button-digital-input-using-arduino/>