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: I rubbed sandpaper on the wood, so I had to take the plunge
Example Output: not plausible

Example Input: The man was lost, so he refused to do so
Example Output: not plausible

Example Input: The cook stirred the ingredients in the bowl, so there was plenty to eat
Example Output:
not plausible