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 man dropped food on the floor, so he went to get food
plausible

The girl was angry with her friend, so she decided to do something about it
plausible

The man contemplated the painting, so he did the next best thing

not plausible