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".
--------
Question: The authorities vowed to protect the identity of the crime victim, so they went to court to investigate

Answer: plausible


Question: The man signed the document, so I would say I did

Answer: not plausible


Question: The man threw his empty can onto the street, so he was jumped from behind

Answer:
not plausible