16900
Herein we discuss quaternary structure dynamics aspects to drug discovery for the disease - associated putative morpheeins phenylalanine hydroxylase , HIV integrase , pyruvate kinase , and tumor necrosis factor alpha .
 Chemical: phenylalanine; Chemical: pyruvate
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: phenylalanine, pyruvate 
Answer:
 Chemical: phenylalanine; Chemical: pyruvate