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A comprehensive study of the sonochemical degradation of dimethyl phthalate ( DMP ) was carried out using high - frequency ultrasonic processes .
 Chemical: dimethyl phthalate; Chemical: DMP
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: dimethyl phthalate; Chemical: DMP