3589
Due to the substantial degradation of DDT to dichlorodiphenyldichloroethane ( DDD ) in sediment , sediment toxicity to C . dilutus increased , while it decreased for H . azteca with extended aging times .
 Chemical: DDT; Chemical: dichlorodiphenyldichloroethane; Chemical: DDD
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: DDT; Chemical: dichlorodiphenyldichloroethane; Chemical: DDD