_:n4a9952060cfb4be1bc3e259ba4437040xb3
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://questions.llc/questions/1664/my-college-teacher-gave-us-a-brainteaser-for-elementary-kids-and-i-can-not-figure-it-out>