13981
In this study , we evaluated the effects of crocin on cognitive performance in ICV STZ - lesioned rats ( 3mg / kg bilaterally , on day 1 and 3 ) .
 Chemical: crocin; Chemical: STZ
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: crocin; Chemical: STZ