2581
METHODS : 24 Rats were divided into 4 groups and received following treatments for 4 weeks ; Corn oil ( control ) , diazinon ( 15mg / kg per day , orally ) and crocin ( 12 . 5 and 25mg / kg per day , intraperitoneally ) in combination with diazinon ( 15 mg / kg ) .
 Chemical: diazinon; Chemical: crocin; Chemical: diazinon
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: diazinon; Chemical: crocin; Chemical: diazinon