Facebook introduces Graph Search to scour friends' profiles

He gave the example of a simple search such as "who are my friends in San
Francisco". It quickly returned a list of Mr Zuckerberg's friends in the
city, ranked by how close his relationship to them is, with his sister at
the top.


More complex queries are possible, however. [...]
Source:
http://www.ezonearticle.com/2013/01/15/facebook-introduces-graph-search-to-scour-friends-profiles/