2580
METHODS : Male adult Wistar rats ( n = 90 and 260 - 290 g ) were divided into 1 , control ; 2 and 3 , crocins ( 15 and 30 mg / kg ) ; 4 , STZ ; 5 and 6 , STZ + crocins ( 15 and 30 mg / kg ) groups .
 Chemical: crocins; Chemical: STZ; Chemical: STZ; Chemical: crocins
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: crocins; Chemical: STZ; Chemical: STZ; Chemical: crocins