If you prefer to listen to the audio-only dictation, you can find it here on Soundcloud.
This is the first mock below 60 WPM that we've included. But don't let that fool you. Whilst the overall text uses simple, everyday words, they are packaged in slightly longer sentences. There are about 125 words that make up (slightly less than) 78% of the NGSL's Top 1k words, so this is a good chance to work on expanding your vocabulary a bit. Even if your average speed is well above this, there is still a decided advantage to taking this and focussing on the quality and readability of your outlines. See https://www.letsloveteelinetogether.com/post/twenty-teeline-shorthand-tips for additional ideas.