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The benzofuran series demonstrated reduced mouse and human whole blood LTB ( 4 ) levels in vitro and led to the identification one analog for advanced profiling .
 Chemical: benzofuran; Chemical: LTB ( 4 )
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: benzofuran; Chemical: LTB ( 4 )