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The order of potency of the 4 phthalates studied was ; DEHP > DEP > BBP > DBP .
 Chemical: phthalates; Chemical: DEHP; Chemical: DEP; Chemical: BBP; Chemical: DBP
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: phthalates; Chemical: DEHP; Chemical: DEP; Chemical: BBP; Chemical: DBP