16001
MATERIAL / METHODS : Normal weight was defined as body mass index ( BMI , kg / m ( 2 ) ) < 25 and obesity was defined as BMI >= 25 .
 None
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:  
Answer:
 None