10509
Based on the outcome of a virtual screening study , various di - and tri - n - butyltin ( IV ) carboxylates were synthesized , and their biological properties were evaluated .
 Chemical: di - and tri - n - butyltin ( IV ) carboxylates
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: di - and tri - n - butyltin ( IV ) carboxylates 
Answer:
 Chemical: di - and tri - n - butyltin ( IV ) carboxylates