Task: Question Answering
Input (English): Question: In what phase or phases of the dream are the night terrors ?: 
 Options:  <1> In the phases of deep slow sleep (phases 3 and 4). <2> In phase 2 <3> In REM sleep. <4> In phase 1 <5> They can occur indistinctly at any stage of the dream.
Output (English): 1