Task: Question Understanding
Input (English): Question: In some locations, squirrels sleep for long periods of time during the winter months. Which of the following most likely causes these squirrels to sleep for long periods of time? (A) increase in humidity (B) decrease in temperature (C) clouds forming in the sky (D) winds blowing in the night?
Output (English): squirrels, sleep, long, winter, causes, squirrels, sleep, long, periods