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 chair squeaked because it was too hard
not plausible

the child caught a life-threatening illness because of a self-inflicted gunshot wound
not plausible

the man closed the book because it was too hard

plausible