4837
Plasma concentrations of interleukin - 6 ( IL - 6 ) , tumor necrosis factor - alpha ( TNF - alpha ) and PGE2 were elevated by both phospholipase A ( 2 ) ( PLA ( 2 ) ) and metalloprotease ( MP ) fractions .
 Chemical: PGE2
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: PGE2