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We report the genomic organization of the mouse orphan receptor related to tyrosine kinases ( Ryk ) , a structurally unclassified member of the growth factor receptor family .
 GENE: orphan receptor related to tyrosine kinases; GENE: Ryk; GENE: growth factor receptor
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: orphan receptor related to tyrosine kinases; GENE: Ryk; GENE: growth factor receptor