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 man signed the document, so it's not like it's a secret

Ex Output:
plausible


Ex Input:
The teacher took roll, so I got to go with her

Ex Output:
not plausible


Ex Input:
The man signed the document, so he should know what to do

Ex Output:

plausible