In this task, you will be given two sentences separated by "because". You should decide whether the first sentence can be the result of the second sentence. If you can see a possible cause and effect relationship, answer with "plausible", otherwise answer with "not plausible".

the dust came off the desk because it was a quick fix
not plausible

the man closed the book because he didn't know what he was doing
not plausible

the man closed the umbrella because he had been waiting

not plausible