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 woman upgraded her computer hardware, so she knew what she was doing
plausible

The teacher took roll, so she identified the students that were absent
plausible

I poured water on my sleeping friend, so I decided to wash it

not plausible