4071
The analysis of the structure of the sleep period as a whole reveals that with increasing of the age the delta - wave stage ( DS ) of the QS ( determined by defined polygraphic parameters ) increases , while the paradoxical phase of sleep ( PS ) decreases , this change being more pronounced during the first six months than during the second ones of the first year of the life .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None