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 man signed the document, so he can't do anything about it
Example Output: plausible

Example Input: The group overlooked the woman's faux pas, so I knew I was in the clear
Example Output: plausible

Example Input: The photographer got the child to smile, so the photographer quickly changed the child's pose
Example Output:
not plausible