Premise: Yelp . Yelp was founded in 2004 by former PayPal employees Russel Simmons and Jeremy Stoppelman . By 2010 it had $ 30 million in revenues and the website had published more than 4.5 million crowd-sourced reviews . From 2009 to 2012 , Yelp expanded throughout Europe and Asia . In 2009 it entered several negotiations with Google for a potential acquisition . Yelp became a public company in March 2012 and became profitable for the first time two years later .
Hypothesis: Yelp only existed in 2011.
Label: CONTRADICTION