More than any other computing language, knowledge about the world is
built into the Wolfram Language, which is exactly what powers the
WolframAlpha search engine. In addition, functions for seemingly
everything — over 5,000 of them — are built right into the language,
which enables you to create user interfaces, graphics objects, graphs,
and more, programmatically.
“The knowledge graph is a vastly less ambitious project than what we’ve
been doing at Wolfram Alpha,” he told VentureBeat when we asked him
about its relation to Google’ knowledge projects. “Making the world
computable is a much higher bar than being able to generate
Wikipedia-style information … a very different thing. What we’ve tried
to do is insanely more ambitious.”
http://venturebeat.com/2014/02/24/knowledge-based-programming-wolfram-releases-first-demo-of-new-language-30-years-in-the-making/
http://www.wolfram.com/wolfram-language/