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Analysis of 1 Mb of published sequence from the region of conserved synteny on human chromosome 5q31 - q33 identified 45 gene candidates , including 35 expressed genes in the human IL - 4 cytokine gene cluster .
 GENE: human IL - 4 cytokine gene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: human IL - 4 cytokine gene