15150
Peptide E ( ( VAALEKE ) 4 ) , which forms a stable coiled coil structure heterodimer with peptide K , was assembled with the HPMA copolymers bearing doxorubicin .
 Chemical: HPMA; Chemical: doxorubicin
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: HPMA; Chemical: doxorubicin