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 saw a woman getting robbed on the street, so I figured I was safe
Example Output: not plausible

Example Input: My foot went numb, so I went to the vet
Example Output:
not plausible