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 patient was dehydrated, so there was no need to drink
Example Output: not plausible

Example Input: The product was heavily advertised, so it didn't cost me anything
Example Output: not plausible

Example Input: The woman upgraded her computer hardware, so she didn't need a new one
Example Output:
plausible