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 navy bombed the ship, so there was no need to fight
not plausible

The man looked at his watch, so I decided to follow him
not plausible

I tossed the ball upwards, so we'll see how it goes

plausible