7138
The protein amide (1) H ( N ) chemical shift temperature coefficient reflects thermal expansion of the N - H . . . O = C hydrogen bond .
 Chemical: (1) H ( N ); Chemical: N - H; Chemical: O = C; 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: (1) H ( N ); Chemical: N - H; Chemical: O = C; Chemical: hydrogen