Can we draw the following hypothesis from the context? 

Context:

The William Martin Armistead House is a historic building at 1510 Hyde Park Street in Sarasota, Florida, United States. It was owned by William Martin Armistead who was prominent in the advertising industry. On March 30, 2009, it was added to the U.S. National Register of Historic Places.

Hypothesis: The William Martin Armistead House has a backyard.
It's impossible to say