Clinton Facing Narrower Path to Nomination - New York Times

Clinton Facing Narrower Path to Nomination - New York Times: "“The superdelegates are not going to really decide until June,” Mr. Penn said. “He’s just going through a vetting and testing process that didn’t happen a year ago and is now happening. The whole vetting and testing process will make a big difference.”"

How many times did Penn poll test the phrase "vetting and testing?"