2557
RATIONALE : Ecstasy ( 3 , 4 - methylenedioxymethamphetamine , MDMA ) is a worldwide recreational drug of abuse .
 Chemical: Ecstasy; Chemical: 3 , 4 - methylenedioxymethamphetamine; Chemical: MDMA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Ecstasy; Chemical: 3 , 4 - methylenedioxymethamphetamine; Chemical: MDMA