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".

Example Input: A man cut in front of me in the long line, so I knew I was in the clear
Example Output: not plausible

Example Input: The motorcyclist twisted the throttle, so he couldn't get too far
Example Output: not plausible

Example Input: The grape juice fermented, so I decided not to drink it
Example Output:
plausible