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 boy murmured his reply to his mother, so he had no choice but to leave

Ex Output:
not plausible


Ex Input:
The mirror in the bathroom fogged up, so it was easy to get out

Ex Output:
not plausible


Ex Input:
My favorite song came on the radio, so I had to listen to it

Ex Output:

plausible