In this task, you will be given two sentences separated by ", so". You should decide whether the first sentence can be the cause of the second sentence. If you can see a possible causation, answer with "plausible", otherwise answer with "not plausible".

Q: A man cut in front of me in the long line, so I knew I was in the clear

A: not plausible
****
Q: The boy turned the lid on the jar, so the lid came off

A: plausible
****
Q: Several witnesses of the crime testified against the suspect, so the police investigated the case

A:
plausible
****