20878
These results highlight that , although hydrophobic domains are key components of IRI activity , the random inclusion of addition hydrophobic units does not guarantee an increase in activity and that the actual polymer conformation is important .
 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