TASK DEFINITION: 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".
PROBLEM: I rubbed sandpaper on the wood, so it was easy to use

SOLUTION: plausible

PROBLEM: The man threw his empty can onto the street, so he didn't have to walk

SOLUTION: plausible

PROBLEM: The girl came across an unfamiliar word in her textbook, so she talked to her teacher

SOLUTION:
plausible