[caption id="attachment_100538" align="alignleft" width="150" caption="Google is hailing the Knowledge Graph as an important step in internet search."][/caption]

Google is introducing a new tool designed to make its search engine smarter.

The new feature, debuting May 16, draws from a Google-built database of more than 500 million people, places, and commonly requested things to provide a summary of vital information alongside the main search results.

Google Inc. spent the past two years poring through online encyclopedia Wikipedia, the CIA Factbook, and other sources to expand a database of 12 million items that it picked up as...

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