9704
Two novel series of N ( 4 ) - ( 5 - ( 2 / 3 / 4 - substituted - phenyl ) - 1 , 3 , 4 - oxadiazol - 2 - yl ) - N ( 1 ) - ( 2 - methyl - 5 - ( prop - 1 - en - 2 - yl ) cyclohex - 2 - enylidene ) semicarbazide and N ( 4 ) - ( 5 - ( 2 / 3 / 4 - substituted - phenyl ) - 1 , 3 , 4 - oxadiazol - 2 - yl ) - N ( 1 ) - ( 3 , 7 - dimethylocta - 3 , 6 - dienylidene ) - semicarbazide were synthesized to meet structural prerequisite indispensable for anticonvulsant activity .
 Chemical: N ( 4 ) - ( 5 - ( 2 / 3 / 4 - substituted - phenyl ) - 1 , 3 , 4 - oxadiazol - 2 - yl ) - N ( 1 ) - ( 2 - methyl - 5 - ( prop - 1 - en - 2 - yl ) cyclohex - 2 - enylidene ) semicarbazide; Chemical: N ( 4 ) - ( 5 - ( 2 / 3 / 4 - substituted - phenyl ) - 1 , 3 , 4 - oxadiazol - 2 - yl ) - N ( 1 ) - ( 3 , 7 - dimethylocta - 3 , 6 - dienylidene ) - semicarbazide
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 ( 4 ) - ( 5 - ( 2 / 3 / 4 - substituted - phenyl ) - 1 , 3 , 4 - oxadiazol - 2 - yl ) - N ( 1 ) - ( 2 - methyl - 5 - ( prop - 1 - en - 2 - yl ) cyclohex - 2 - enylidene ) semicarbazide; Chemical: N ( 4 ) - ( 5 - ( 2 / 3 / 4 - substituted - phenyl ) - 1 , 3 , 4 - oxadiazol - 2 - yl ) - N ( 1 ) - ( 3 , 7 - dimethylocta - 3 , 6 - dienylidene ) - semicarbazide