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Leukotriene A ( 4 ) hydrolase ( LTA ( 4 ) H ) is a cystolic enzyme that stereospecifically catalyzes the transformation of LTA ( 4 ) to LTB ( 4 ) .
 Chemical: Leukotriene A ( 4 ); Chemical: LTA ( 4 ); 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: Leukotriene A ( 4 ); Chemical: LTA ( 4 ); Chemical: LTB ( 4 )