2689
Therefore NFkappaB activity , oxidative stress , neuronal nitric oxide synthase ( nNOS ) activity , spatial learning and memory as well as the effect of topiramate , a previously proposed therapy for cocaine addiction , were evaluated in an experimental model of cocaine administration in rats .
 Chemical: nitric oxide; Chemical: topiramate; Disease: cocaine addiction; Chemical: cocaine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: nitric oxide, topiramate, cocaine addiction, cocaine 
Answer:
 Chemical: nitric oxide; Chemical: topiramate; Disease: cocaine addiction; Chemical: cocaine