7220
In hydrated sPS , where the scale of water - polymer segregation is much smaller ( 1 - 2 nm ) , sarin also interacts favorably with hydrophobic and hydrophilic components .
 Chemical: hydrated sPS; Chemical: sarin
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: hydrated sPS; Chemical: sarin