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 product was heavily advertised, so of course I had to check it out
Example Output: plausible

Example Input: The navy bombed the ship, so we didn't have to worry about it
Example Output: not plausible

Example Input: The man hated his new haircut, so he couldn't do anything about it
Example Output:
plausible