6010
Furthermore , the level of prostaglandin E ( 2 ) ( PGE ( 2 ) ) was determined in LPS - induced RAW264 . 7 macrophages .
 Chemical: prostaglandin E ( 2 ); Chemical: PGE ( 2 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: prostaglandin E ( 2 ); Chemical: PGE ( 2 )