7223
The behavior of sarin is similar to that of its common simulant , dimethyl methylphosphonate .
 Chemical: sarin; Chemical: dimethyl methylphosphonate
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: sarin; Chemical: dimethyl methylphosphonate