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Partial trisomy distal 4q ( denoted 4q + ) is a human chromosomal disorder caused by duplication of the distal end of the long arm of chromosome 4 ( Chr4 ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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