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: The man threw his empty can onto the street, so he did the next best thing
Example Output: not plausible

Example Input: I pushed the gas pedal, so I knew something was going on
Example Output: plausible

Example Input: The surfer caught the wave, so causing it to burst
Example Output:
not plausible