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 man was lost, so he was able to get away with it

A: not plausible
****
Q: My foot went numb, so causing me to stumble

A: plausible
****
Q: It got dark outside, so we decided to head back to the hotel

A:
plausible
****