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The reaction of enaminones with 3 - amino - 2 - cyanopent - 2 - enedinitrile can lead to an array of 12 possible products , depending on the reaction pathway and tautomerization .
 Chemical: enaminones; Chemical: 3 - amino - 2 - cyanopent - 2 - enedinitrile
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: enaminones; Chemical: 3 - amino - 2 - cyanopent - 2 - enedinitrile