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 authorities vowed to protect the identity of the crime victim, so they decided to leave
Example Output: not plausible

Example Input: The woman felt lonely, so she tried to avoid him
Example Output: not plausible

Example Input: The authorities vowed to protect the identity of the crime victim, so the police had to leave
Example Output:
not plausible