2689
M3 was the corresponding carboxylic acid species retaining the fluorine atom , ( 2R ) - 2 - fluoro - 3 - hydroxyphosphonoyl - propanoic acid .
 Chemical: carboxylic acid; Chemical: fluorine; Chemical: ( 2R ) - 2 - fluoro - 3 - hydroxyphosphonoyl - propanoic acid
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: carboxylic acid; Chemical: fluorine; Chemical: ( 2R ) - 2 - fluoro - 3 - hydroxyphosphonoyl - propanoic acid