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 authorities vowed to protect the identity of the crime victim, so they withheld the victim's name from the public
plausible

The homeowners disliked their nosy neighbors, so they hosted a barbeque in their backyard
not plausible

The man was lost, so he didn't know what to do

plausible