1264
Rate constants for attack at the fluorine - bearing carbon of triplet 2 - fluoro - 4 - nitroanisole are 2 . 9 x 10 ( 9 ) , 1 . 3 x 10 ( 9 ) , and 6 . 3 x 10 ( 8 ) M ( - 1 ) s ( - 1 ) for cyanide ion , hydroxide ion , and pyridine , respectively .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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