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".

[Q]: I finished a page of the book, so be on the lookout for that
[A]: plausible


[Q]: The man was lost, so he was brought in to help
[A]: not plausible


[Q]: The man was lost, so he had no choice but to return
[A]:
plausible