3806
Ecstasy users ( at least once in the last 12 months ) who subsequently took ecstasy ( n = 35 ) over the period of one week , were compared on measures of mood , sleep , stress and drug use , with those who abstained from ecstasy ( n = 21 ) that week .
 Chemical: Ecstasy; Chemical: ecstasy; Chemical: ecstasy
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Ecstasy, ecstasy, ecstasy 
Answer:
 Chemical: Ecstasy; Chemical: ecstasy; Chemical: ecstasy