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 was lost, so he was brought in to help
not plausible

The girl was angry with her friend, so she decided to do something about it
plausible

I saw a woman getting robbed on the street, so I tried to help her out

plausible