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 went to court to investigate
plausible

The woman sensed a pleasant smell, so she was reminded of her childhood
plausible

The man was lost, so the question was not answered

not plausible