20043
Similar to estrogens , dietary soy significantly reduced cerebral edema and vascular apoptosis 24 hours after stroke .
 Chemical: estrogens
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: estrogens 
Answer:
 Chemical: estrogens