premise: Catch the Thief<br>The police were trying to catch a neighborhood thief. They decided to stake-out the entire area that night. They didn't catch the thief so decided to continue the stake-out. Four nights later they saw the thief. All the police officers rushed to grab the guy and they caught him.
hypothesis: They staked him out on either a Monday or a Tuesday.
reason: If they started the stakeout on a Wednesday, then four days later would have been a Sunday and they wouldn't have been doing it on a Mon or Tuesday. However they might have been. There is no way to know. 