Task: Text Categorization
Input (English): Question: In what phase or phases of the dream are the night terrors ?: 
 Options:  <0> In the phases of deep slow sleep (phases 3 and 4). <1> In phase 2 <2> In REM sleep. <3> In phase 1 <4> They can occur indistinctly at any stage of the dream.
Output (English): psychology