2645
Pregnant rats were exposed to DHP and DCHP at doses of 0 , 20 , 100 and 500mg / kg / day , by gavage , on gestational days ( GD ) 6 - 19 .
 Chemical: DHP; Chemical: DCHP
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: DHP; Chemical: DCHP