16577
Furthermore , ( . ) NO products derived from iNOS rapidly reacted with VP - 16 leading to decreased DNA damage and cytotoxicity .
 Chemical: ( . ) NO; Chemical: VP - 16
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: ( . ) NO, VP - 16 
Answer:
 Chemical: ( . ) NO; Chemical: VP - 16