The case that failed was in this URL.  Selecting "River" selected "River Oaks Place" in "55 River Oaks Place, #70"

http://www.bamboo-gardens.com/locations##SanJoseCA

I found an example where we expand too far after coca recognizes a URL. The intent we get back is correct and navigates to the expected URL but the selection and display text are incorrect if I tap on most parts of the URL. If I tap toward the start of the URL on "http" or "www" then the selection is correct.

"http://www.example.com/index.html" on https://en.wikipedia.org/wiki/Uniform_Resource_Locator

There are actually two different bugs here: The first has a selection that's too short due to Coca not returning a content-reference for the whole address.  I'll filed a Coca bug for this (at https://b.corp.google.com/issues/36006993).  The second is due to our GWS plugin trying to find a content-reference that includes the whole search term we've determined, but in these cases it's too long. I think we should instead find a content-reference that just includes the original selection. https://b.corp.google.com/issues/36008206. I'll send out a CL to make that change. 

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Addressed with server-side bugs.