10040
The characterized conformer has a hydrogen - bonding interaction between a hydrogen atom of one NH ( 3 ) ligand and the carbonyl group of guanine .
 Chemical: hydrogen; Chemical: hydrogen; Chemical: NH ( 3 ); Chemical: carbonyl; Chemical: guanine
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; Chemical: NH ( 3 ); Chemical: carbonyl; Chemical: guanine