5703
Based on the recent literature , the price elasticity of demand for SSBs , fast food , fruits and vegetables was estimated to be - 1 . 21 , - 0 . 52 , - 0 . 49 and - 0 . 48 , respectively .
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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:
 None