28310
Prostagrandin ( PG ) E2 production stimulated by arachidonic acid was suppressed by SAL - 2 .
 Chemical: ( PG ) E2; Chemical: arachidonic acid; Chemical: SAL - 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: ( PG ) E2; Chemical: arachidonic acid; Chemical: SAL - 2