TASK DEFINITION: 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".
PROBLEM: I wrote a thank-you note to my grandmother because i have to

SOLUTION: plausible

PROBLEM: I slipped on the floor because it was the only place i could sleep

SOLUTION: not plausible

PROBLEM: the mother suspected that her son was lying because he refused to talk to her

SOLUTION:
plausible