Experiment spotted by SEO consultant Brody Clark:
I’ve seen tests like this with “keywords” many times over the past six months. Each time in different forms. However, right now, the “keyword” shown in the screenshot is not actually mentioned on the page – it was created by Google, ”Clarke wrote on Twitter.
It looks like this:
Clarke notes that in previous Google tests used those words and phrases that were contained on the pages.
A source: Twitter