Since the formatting of the "King of Canada" box and the "All Hail King Barack Obama" box are different, I guess they are produced by different pieces of softwa

Since the formatting of the "King of Canada" box and the "All Hail King Barack Obama" box are different, I guess they are produced by different pieces of software. I had only seen the second kind before, where Google shows a snippet from a webpage with some bold text to highlight why it thinks the website provides the answer to the query. But the first kind, for "King of Canada", just prints the answer. I guess they probably have some set of Wolfram Alpha-like programs to answer particular classes of queries (like artithmetic problems, or names of monarchs), an a different program to generate the snippets.