23286
OBJECTIVE : The objective of this study is to determine whether the pharmacological manipulation of nNOS / NO / sGC / cGMP signaling pathway altered changes induced by repeated cocaine exposure .
 Chemical: NO; Chemical: cGMP; Chemical: cocaine
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: NO; Chemical: cGMP; Chemical: cocaine