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".

[EX Q]: It got dark outside, so we had to go downstairs
[EX A]: plausible

[EX Q]: The woman felt lonely, so she went to check it out
[EX A]: plausible

[EX Q]: The tenant misplaced his keys to his apartment, so causing a lot of pain
[EX A]:
not plausible