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: I rubbed the soap between my hands, so of course I had to wear it
Example Output: not plausible

Example Input: The papers were disorganized, so it was easy to find what you were looking for at a glance
Example Output: not plausible

Example Input: The man signed the document, so the transaction became official
Example Output:
plausible