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The goal of this Minireview is to provide an overview of the most commonly employed carboxylic acid ( bio ) isosteres and to present representative examples demonstrating the use and utility of each isostere in drug design .
 Chemical: carboxylic 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