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".
--------
Question: the inside of the train went dark because it was cloudy

Answer: plausible


Question: the trip took a long time because I had to go to work every week

Answer: not plausible


Question: the bird couldn't fly because it was too heavy

Answer:
plausible