893
We examined the molecular evolution of two unlinked P / A polymorphisms that underlie a well - documented adaptive polymorphism for cyanogenesis ( hydrogen cyanide release with tissue damage ) in white clover .
 Chemical: hydrogen cyanide
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: hydrogen cyanide