TASK DEFINITION: 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".
PROBLEM: The pond froze over for the winter, so there was plenty of rain

SOLUTION: not plausible

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

SOLUTION: not plausible

PROBLEM: The authorities vowed to protect the identity of the crime victim, so they did the next best thing

SOLUTION:
plausible