Words in searches are counted. Common words like "the" and "what" are ignored.
The list is divided into intervals (bins) by timestamp, and the most frequent word in each bin is selected.
Each selected word's count-in-bin is plotted with time. Clicking on a word toggles its graph on and off.
p5 and JQuery are used via CDN links in the index.html file.
Usage
The files study.js, ignored.js and index.html need to be served to your browser, in addition to a "MyActivity.html" file from Google. This can be found at https://takeout.google.com/settings/takeout. Select: My Activity > Select specific activity data > (Choose a service), and follow the prompts.
Open the browser console, navigate to localhost, and wait a few seconds to a couple minutes for the window to appear, depending on the size of the MyActivity file.