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: The girl went down the hill on her bike, so in order to get to the top of the hill

A: not plausible
****
Q: I was confused by the professor's lecture, so I thought I'd ask here

A: plausible
****
Q: The mirror in the bathroom fogged up, so we couldn't see the water

A:
not plausible
****