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MURFREESBORO, TN (WSMV) – News4 is finding out how an app helped first responders find two teenage girls lost in a Midstate park. The app is called what3words. It gives every 10-foot square in the world a three word address.

“Three words and it’ll take you straight to where they are,” Battalion Chief Jamie Bigelow with the Murfreesboro Fire Rescue Department said.

Battalion Chief Bigelow said a call came in Saturday night about two teenage girls lost in Barfield Park. The teens spent an hour trying to get back to their car with Google Maps, but couldn’t…