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".

Input: Consider Input: The surfer caught the wave, so the wave carried her to the shore

Output: plausible


Input: Consider Input: The pond froze over for the winter, so we had to clean it

Output: not plausible


Input: Consider Input: The man was lost, so he could be returned


Output: not plausible