He Clearly explained that, the site which has auto generated content and doesn’t have added value, then Google will take action for those sites.
The user submitted question:
What does Google do against sites that have a script that automatically picks up the search query and makes a page about it? Ex: you Google [risks of drinking caffeine], end up at a page: “we have no articles for DRINKING CAFFEINE” with lots of ads.
Walter, Leiden, Netherlands
Below is the video, where he explains about “AUTO GENERATED CONTENT”