8659
The results of the study demonstrated an inverse relationship between magnesium intake and depressive symptoms , which persisted even after adjustments for sex , age , body mass index , monthly expenses , close friends , living on campus , smoking ( current and former ) , education , physical activity , and marital status .
 Chemical: magnesium
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: magnesium 
Answer:
 Chemical: magnesium