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 signed the document, so he can't do anything about it
plausible

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

The woman's ring slipped off in the shower, so causing her to fall on her face

not plausible