Created by myself using <a href="https://en.wikipedia.org/wiki/Microsoft_PowerPoint" class="extiw" title="en:Microsoft PowerPoint">Microsoft PowerPoint</a>.
<a href="https://en.wikipedia.org/wiki/User:Lakeyboy" class="extiw" title="wikipedia:User:Lakeyboy">Lakeyboy</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
<span class="int-own-work" lang="en">Own work</span>