text: <START_QUESTION> Four golfers named Mr. Black, Mr. White, Mr. Brown and Mr. Blue were competing in a tournament. The caddie didn't know their names, so he asked them. One of them, Mr. Brown, told a lie. The 1st golfer said " The 2nd Golfer is Mr. Black. " The 2nd golfer said " I am not Mr. Blue! " The 3rd golfer said " Mr. White? That's the 4th golfer. " And the 4th golfer remained silent. Which one of the golfers is Mr. Blue? <END_QUESTION>
  