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 the victim struggled to recall details about the crime
not plausible

The baby pulled the mother's hair, so the baby burped
not plausible

The tenant misplaced his keys to his apartment, so he got rid of it

not plausible