11558
We focus on the dependence of the EPR properties of encapsulated spin - labels on the hydrogen bonding topologies that occur upon encapsulation , and quantize various contributions to these parameters according to specific hydrogen bonding patterns .
 Chemical: hydrogen; Chemical: hydrogen
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: hydrogen; Chemical: hydrogen