16530
Dose - response curves were also constructed for pre - incubation of vascular rings with N omega - nitro - L - arginine methyl ester ( L - NAME ) ( a non - specific nitric oxide synthase inhibitor ) , indomethacin ( an unspecific cyclooxygenase inhibitor ) , and 1H - [ 1 , 2 , 4 ] oxadiazolo [ 4 , 3 - a ] quinoxalin - 1 - one ( ODQ ) ( a guanylyl cyclase inhibitor ) .
 Chemical: N omega - nitro - L - arginine methyl ester; Chemical: L - NAME; Chemical: nitric oxide; Chemical: indomethacin; Chemical: 1H - [ 1 , 2 , 4 ] oxadiazolo [ 4 , 3 - a ] quinoxalin - 1 - one; Chemical: ODQ
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: N omega - nitro - L - arginine methyl ester; Chemical: L - NAME; Chemical: nitric oxide; Chemical: indomethacin; Chemical: 1H - [ 1 , 2 , 4 ] oxadiazolo [ 4 , 3 - a ] quinoxalin - 1 - one; Chemical: ODQ