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A nonsense mutation in exon 17 ( codon 556 ) of the RB1 gene was found to be present homozygously in both the retinal and the pineal tumours .
 Disease: retinal and the pineal tumours
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: retinal and the pineal tumours