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".

Ex Input:
The tenant misplaced his keys to his apartment, so he couldn't call for help

Ex Output:
plausible


Ex Input:
The group overlooked the woman's faux pas, so the woman was relieved

Ex Output:
plausible


Ex Input:
The man signed the document, so he knows what he's talking about

Ex Output:

plausible