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 baby was wailing in his crib, so the baby crawled to the mother
not plausible

I clumsily bumped into the stranger, so causing him to fall to the ground
plausible

The man looked at his watch, so he knew it wasn't him

not plausible