2267
This was associated with elevated renal mPGES - 1 protein expression and increased urine PGE ( 2 ) excretion .
 Chemical: PGE ( 2 )
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: PGE ( 2 ) 
Answer:
 Chemical: PGE ( 2 )