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".

Input: Consider Input: My foot went numb, so I couldn't go to the gym

Output: plausible


Input: Consider Input: The man looked at his watch, so he knew it wasn't him

Output: not plausible


Input: Consider Input: I held the door for the woman entering behind me, so she didn't have to hear me


Output: not plausible