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".

It got dark outside, so didn't help us
not plausible

I scratched my skin, so I thought I'd give this a try
not plausible

The book was deemed inappropriate for children, so this was the first time I read it

plausible