17724
A hydrophobic catechol prepared thus polymerized shows the ability to self - assemble as solid nanoparticles with sticky properties in polar solvent media .
 Chemical: catechol
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: catechol 
Answer:
 Chemical: catechol