14196
METHODS : Men and women ( n = 62 ) were randomized to receive a beverage containing placebo ( PLA ) or caffeine ( CAF ) and to consume a low ( LED ) or high energy density ( HED ) , novel - flavored yogurt .
 Chemical: caffeine; Chemical: CAF
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: caffeine; Chemical: CAF