4937
Earthworms were less sensitive to aged SAB than to fresh SAB in high carbon soil for juvenile production ( EC50 of 1 , 753 and 317 mg / kg , respectively ) , but were more sensitive for adult survival ( LC50 of 2 , 322 and 1 , 364 mg / kg , respectively ) .
 Chemical: carbon
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: carbon