5349
In his original publication describing the purification and sequencing of dynorphin A , Avram described this peptide as " extraordinarily potent " ( " dyn " from the Greek , dynamis = power and " orphin " for endogenous morphine peptide ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None