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".

The man's eye became infected, so causing him to lose his vision
plausible

The mirror in the bathroom fogged up, so I could not see what was going on
plausible

The pond froze over for the winter, so there was plenty of rain

not plausible