15777
These data support the hypothesis that the fetal GC surge is responsible , in part , for significant variations in genome - wide promoter methylation and that prenatal sGC treatment profoundly changes the epigenetic landscape , affecting both DNA methylation and H3K9 acetylation .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None