Take the following as truth: Well, that wasn't any manner of good to me, but just as I was going to give it up, and climb down ignominiously, some one inside moved and threw his shadow on my little bit of wall and, by gum, it was Whittington! 
Then the following statement: "There was a bright light inside the room and it caused Whittington's shadow.  " is true, false, or inconclusive?
Answer: Inconclusive