2506
Protective effect was also observed against alkylating DNA damage induced by methyl - methanesulfonate , except for H . androsaemum .
 Chemical: methyl - methanesulfonate
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: methyl - methanesulfonate