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 patient was dehydrated, so they had to drink more fluids

A: plausible
****
Q: It got dark outside, so didn't help us

A: not plausible
****
Q: The boaters set off a flare, so we had to take the plunge

A:
not plausible
****