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Mesalamine ( 5 - ASA ) is widely used for the treatment of ulcerative colitis , a remitting condition characterized by chronic inflammation of the colon .
 Chemical: Mesalamine; Chemical: 5 - ASA
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: Mesalamine; Chemical: 5 - ASA