3473
Our case supports the hypothesis that endogenous renal prostaglandins play a role in the maintenance of renal blood flow when circulating plasma volume is diminished .
 Chemical: prostaglandins
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: prostaglandins 
Answer:
 Chemical: prostaglandins