1402
MEK1 was significantly decreased also after a single injection of METH , but to a much lesser degree than after multiple injections of METH .
 Chemical: METH; Chemical: METH
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: METH, METH 
Answer:
 Chemical: METH; Chemical: METH