3504
Linaclotide is stable in the acidic environment of the stomach and is converted to MM - 419447 in the small intestine .
 Chemical: Linaclotide; Chemical: MM - 419447
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: Linaclotide; Chemical: MM - 419447