2119
A mobile phase was consisted of 0 . 5 % formic acid in water and 0 . 5 % formic acid in acetonitrile ( 72 : 28 ) .
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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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