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We therefore propose that PRR2 , and not PVR , is the true human homolog of MPH .
 GENE: PRR2; GENE: PVR; GENE: MPH
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: PRR2; GENE: PVR; GENE: MPH