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 grape juice fermented, so there was no need to add more
Example Output: not plausible

Example Input: I came upon a puddle on the sidewalk, so I got back in the car
Example Output: plausible

Example Input: The woman felt compelled to help someone in need, so she decided to give it a try
Example Output:
plausible