Take the following as truth: It was pitch dark, but Lawrence was following with the candle, and by its feeble light we saw that the bed had not been slept in, and that there was no sign of the room having been occupied. 
Then the following statement: "Lawrence and I determined that the bed had not been slept in by entering the unoccupied room by candlelight." is true, false, or inconclusive?
Answer: True