10843
Unambiguous evidence for the engagement of CF ( 3 ) group in N - H . . . F - C hydrogen bond in a low polarity solvent , the first observation of its kind , is reported .
 Chemical: CF ( 3 ); Chemical: N - H; Chemical: F - C; Chemical: hydrogen
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: CF ( 3 ), N - H, F - C, hydrogen 
Answer:
 Chemical: CF ( 3 ); Chemical: N - H; Chemical: F - C; Chemical: hydrogen