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 driver rotated the steering wheel, so I could get in
not plausible

The man looked at his watch, so he realized he forgot something
not plausible

The boaters set off a flare, so you don't have to bring your own

not plausible