13418
Individuals from 3 cohorts were classified as lean ( BMI < 25kg / m ( 2 ) ) , overweight ( BMI >= 25kg / m ( 2 ) , BMI < 30kg / m ( 2 ) ) or obese ( BMI >= 30kg / m ( 2 ) ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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