Google does a great deal of research into natural language processing and synthesis, but not every project has to be a new Assistant feature or voice improvement. The company has a little fun now and then, when the master AI permits it, and today it has posted a few web experiments that let you engage with its word-association systems in a playful way.
It returns passages from books that, based on their language only, are closely associated with your question. And while the results are hit and miss, they are nice and flexible. Sentences answering my questions appeared even though they were not directly adjacent to key words or particularly specific about doing so.