16484
For all pyrethroids , the mean values of KOC and KDOC of formulated sediments were two to three , and three to 10 times smaller than those of natural sediments , respectively .
 Chemical: pyrethroids
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: pyrethroids 
Answer:
 Chemical: pyrethroids