8229
The through - space spin - spin couplings between ( 19 ) F and ( 1 ) H / ( 13 ) C nuclei have been observed in solution .
 Chemical: ( 19 ) F; Chemical: ( 1 ) H; Chemical: ( 13 ) C
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: ( 19 ) F; Chemical: ( 1 ) H; Chemical: ( 13 ) C