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The Hp gene cluster consists of coding regions of the alpha chain and beta chain of the haptoglobin gene ( Hp ) and of the alpha chain and beta chain of the haptoglobin - related gene ( Hpr ) , in tandem from the 5 side .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
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